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Timeline

1964~

Year Month Company-related events
(product-related businesses of Idemitsu Petrochemical)
1964 Sept. Idemitsu Petrochemical Co., Ltd.
(hereinafter "Idemitsu Petrochemical") established
1965 April Nippon Polychemicals Co., Ltd. (LDPE-manufacturing joint venture of Toyo Soda Manufacturing Co., Ltd., Tokuyama Soda Co., Ltd., and Idemitsu Petrochemical) established
June Idemitsu Petrochemical company emblem (○△□) decided on

1966

July Plastic net technology adopted from Nalle Plastics of the US
Oct. Plastic tube technology adopted from Thatcher Glass Manufacturing of the US
Dec. Inflation film line adopted at the Atsugi Plant of Chiyoda Kakoshi
(later Hikari Kagaku Kogyo; the first directly affiliated processor)
1967 Jan. Mizonokuchi Processing Laboratory opens
Feb. UniBall technology adopted from European Plastic Machinery Manufacturing of Denmark
(sublicensed to Hatachi Kako Co., Ltd. and others in 1967)
June Profile extrusion molding technology adopted from Plascolite of the US
June T-die-film production machine installed at Mizonokuchi Processing Laboratory (development of UNICAST film begins)
1968 May Sale of Idemitsu Styrol (GPPS) begins
Sept. Company exhibits at second Tokyo Pack (International Packaging Exhibition)
1969 April PC plant completed at Tokuyama Plant
July R&D begins on nori screen-mats
Nov. Groundbreaking ceremony for the R&D Laboratory for Plastic Products

1970~

Year Month Company-related events
(product-related businesses of Idemitsu Petrochemical)
1970 Feb. Hikari Kagaku Kogyo Co., Ltd. established
June Plastic container technology adopted from Rehrig Pacific of the US
Aug. Mizonokuchi Processing Laboratory closed
Sept. R&D Laboratory for Plastic Products opens
Oct. HIPS plant completed at Tokuyama Plant
1971 April Nippon Polychemicals Co., Ltd. merged into Toyo Soda Manufacturing Co., Ltd.
June Sale of nori screen-mats begins
(withdrew from this market with the sale of the business in 1984)
Aug. Sale of plastic kerosene tanks begins
Aug. Sale of plastic containers begins

1972

March Sale of petrochemical products at service stations directly operated by Idemitsu Kosan begins
1973 July Ethylene plant accident at Tokuyama Plant
Oct. Development of HDPE uniaxial oriented film (MOF) begins
(development suspended in September 1977)
1974 March Beginning of full operation at the Tokuyama Plant
April Plastic Product Sections No. 1 and 2 set up at Idemitsu Petrochemical (first departments in charge of processed resin products)
April R&D on HDPE thin gauge film begins
Aug. Idemitsu Petrochemical invests in Hikari Kagaku Kogyo Co., Ltd.
1975 Feb. HDPE plant begins operation at Chiba Plant
March Agricultural plastic products (containers etc.) sales staff assigned to Idemitsu Kosan Co.,Ltd. Branch Offices etc.
(seven locations across Japan, including Utsunomiya, Chiba, Wakayama, and Kochi)
Aug. High-speed inflation film machine installed at R&D Laboratory for Plastic Products, accelerating R&D on UF film
1976 Feb. Cross-laminated film technology adopted from Mr. O.B. Rasmussen of Denmark
(sublicensed to Satoh Sangyo Co., Ltd. in 1979)
Oct. R&D on double blow process begins
(later licensed to Hatachi Kako Co., Ltd.)
- Sale of plastic grocery bags begins in the Kansai area
1977 Feb. PP plant begins full operation at the Chiba Plant
Dec. Multilayer sheet technology adopted from ONO of France
(development of MULTILAY™ begins)
Dec. Contract (dissolved in 1983) on joint development of multilayer sheets concluded with Japan Styrene Paper (now JSP Corp.)
- Sale of plastic grocery bags begins in the Tokyo area
1978 Jan. Multilayer inflation film machine installed in R&D Laboratory for Plastic Products (development of UNICREST™ begins)
Nov. Development of gas barrier multilayer sheets using EVOH resin begins
Dec. Development of OPS sheets using tubular process begins
1979 Feb. Test sale of multilayer sheets (later MULTILAY™) begins
April Three model dealers chosen for sale of products using Idemitsu Kosan dealers (staff dispatched from Idemitsu Petrochemical)
- R&D on agricultural and fishery materials curtailed (focusing on nori screen-mats, mulching film, and seedling trays)
Aug. Idemitsu Petrochemical invests in Taiyo Kasei Co., Ltd.

1980~

Year Month Company-related events
(product-related businesses of Idemitsu Petrochemical)
1980 March Development of mulching film suspended, as agricultural materials activities focus solely on seedling trays
Aug. Commercial production line for MULTILAY™ installed at Japan Styrene Paper´s Hiratsuka Nishinomiya Plant
Oct. Full-fledged introduction of MULTILAY™ (including gas barrier grade) to the market
1981 March Mr. Sazo Idemitsu, founder of Idemitsu, passes away
April Development of high transparency PP sheets (later PURELAY™) begins
May Development of multilayer inflation film (SUX film) for heavy-duty use begins
July Market & technology research on laminate base film begins
(study of in-house production of UNILAX™ would begin based on this research)
July Polymer Research Laboratory established inside Chiba Plant of Idemitsu Petrochemical
(spinoff of polymer research segment from R&D Laboratory for Plastic Products)
Oct. Full-fledged market & technological research on zipper bags begins
(development of PLALOC™ begins)

1982

April Plastic Products Department established at Idemitsu Petrochemical Head Office
Oct. Construction project on in-house processing plant begins
Oct. Print Sheet™ brought to market
1983

April

製Decision made to make processed resin products segment independent
April UNILAX™ project begins
April SUX film technology licensed to British firm
June Decision made to make resin processing plant as an independent company (decision on establishment of Uni Kako Co., Ltd.)
Dec. Experimental resin processing plant completed in Aoyagi, Ichihara, Chiba Prefecture
(Joint development contract with Japan Styrene Paper Co., Ltd. on multilayer sheets cancelled)

1984~

Year Month Company-related events
(product-related businesses of Idemitsu Petrochemical and Uni Kako)
1984 Jan. Uni Kako Co., Ltd. established as manufacturing company for plastics packaging materials
Jan. CPC project begins
April Use of I-PACS (products business support system) begins
April Development of biaxial oriented nylon film using tubular process (ONY film) begins based on results of OPS sheet development suspended in Sept. 1983 (development of UNILON begins)
June UNILAX™ line No. 1 set up at Aoyagi Experimental Plant, and grades for bread, noodles, and bean sprouts brought to market
July Publication of Idemitsu Packaging News begins
1985 Jan. Packaging Products Laboratory opened inside R&D Laboratory for Plastic Products
April Study of construction of full-fledged in-house plant begins
June LLDPE (MORETEC™ etc.) plant begins operation at Idemitsu Petrochemical´s Chiba Plant
Dec. 「Decision made to set up UNILAX™ line No. 2

1986

Feb. R&D Laboratory for Plastic Products closed, retaining Packaging Products Laboratory
April Decision made to construct Chiba Plant and Hyogo Plant as full-fledged in-house plants
Aug. Decision made to set up STRATECH™ production line (spun-bonded PP nonwoven fabrics) at Chiba Plant
Aug. OPALAY™, inorganic filled multilayer sheets, brought to market
(withdrew from this market with sale of the business in 1996)
Sept. Decision made to set up MULTILAY™ line No. 2 at Hyogo Plant
Sept. PLALOC™ LDPE grades brought to market
Sept. PURELAY™ technology licensed to West German firm
Oct. Exhibited at Tokyo Pack ´86
Oct. UNILAX™ line No. 2 begins operation at Chiba Plant
Dec. PLALOC™ PP grade brought to market
Dec. Decision made to set up disposable diaper production line at Chiba Plant
1987 Jan. Hyogo Plant completed, MULTILAY™ lines Nos. 1 & 2 and PURELAY™ production line begin operation
Jan. UNILAX™ line No. 1 begins operation at Chiba Plant
Jan. Packaging Products Laboratory relocated to Hyogo Plant and UNILON™ experimental production line installed
Feb. Uni Kako Head Office relocated from Aoyagi, Ichihara, Chiba to Ginza 4-chome, Chuo-ku, Tokyo (Nissho Kosan Building)
March Okinawa Plant completed (production of Protein Powder)
April Multilayer inflation film lines begin operation at Hikari Kagaku Kogyo Co., Ltd.´s Chiba Plant
1988 May STRATECH™ line No. 1 begins operation at Chiba Plant
Sept. MAGICTOP™ technology licensed to US firm
1989 March MAGICTOP™ technology licensed to Australian firm
Oct. MAGICTOP™ technology licensed to West German firm

1984~

Year Month Company-related events
(product-related businesses of Idemitsu Petrochemical and Uni Kako)
1984 Jan. Uni Kako Co., Ltd. established as manufacturing company for plastics packaging materials
Jan. CPC project begins
April Use of I-PACS (products business support system) begins
April Development of biaxial oriented nylon film using tubular process (ONY film) begins based on results of OPS sheet development suspended in Sept. 1983 (development of UNILON begins)
June UNILAX™ line No. 1 set up at Aoyagi Experimental Plant, and grades for bread, noodles, and bean sprouts brought to market
July Publication of Idemitsu Packaging News begins
1985 Jan. Packaging Products Laboratory opened inside R&D Laboratory for Plastic Products
April Study of construction of full-fledged in-house plant begins
June LLDPE (MORETEC™ etc.) plant begins operation at Idemitsu Petrochemical´s Chiba Plant
Dec. 「Decision made to set up UNILAX™ line No. 2

1986

Feb. R&D Laboratory for Plastic Products closed, retaining Packaging Products Laboratory
April Decision made to construct Chiba Plant and Hyogo Plant as full-fledged in-house plants
Aug. Decision made to set up STRATECH™ production line (spun-bonded PP nonwoven fabrics) at Chiba Plant
Aug. OPALAY™, inorganic filled multilayer sheets, brought to market
(withdrew from this market with sale of the business in 1996)
Sept. Decision made to set up MULTILAY™ line No. 2 at Hyogo Plant
Sept. PLALOC™ LDPE grades brought to market
Sept. PURELAY™ technology licensed to West German firm
Oct. Exhibited at Tokyo Pack ´86
Oct. UNILAX™ line No. 2 begins operation at Chiba Plant
Dec. PLALOC™ PP grade brought to market
Dec. Decision made to set up disposable diaper production line at Chiba Plant
1987 Jan. Hyogo Plant completed, MULTILAY™ lines Nos. 1 & 2 and PURELAY™ production line begin operation
Jan. UNILAX™ line No. 1 begins operation at Chiba Plant
Jan. Packaging Products Laboratory relocated to Hyogo Plant and UNILON™ experimental production line installed
Feb. Uni Kako Head Office relocated from Aoyagi, Ichihara, Chiba to Ginza 4-chome, Chuo-ku, Tokyo (Nissho Kosan Building)
March Okinawa Plant completed (production of Protein Powder)
April Multilayer inflation film lines begin operation at Hikari Kagaku Kogyo Co., Ltd.´s Chiba Plant
1988 May STRATECH™ line No. 1 begins operation at Chiba Plant
Sept. MAGICTOP™ technology licensed to US firm
1989 March MAGICTOP™ technology licensed to Australian firm
Oct. MAGICTOP™ technology licensed to West German firm

1990~

Year Month Company-related events
(product-related businesses of Idemitsu Petrochemical)
1990 March MULTILAY™ lines Nos. 3 & 4 begin operation at Hyogo Plant
July Industrial Materials Laboratory set up at Hyogo Plant (to handle development of nonwoven fabrics and Protein Plastic)
Oct. UNILAX™ line No. 3 begins operation at Chiba Plant
1991 Jan. Plaloc Co., Ltd. established
April UNILON™ production technology completed, commercial production formally begins
May Test sale of processed products using STRATECH™ (e.g., antistatic bars, antibacterial nonwoven fabrics) begins
Sept. MEDIPAIL™ (medical waste containers) win Good Design Award

1992

July PLALOC™ LLDPE grade brought to market
Aug. I-Save™ (oil-adsorption material using STRATECH™) brought to market
Nov. UNIASLON™ (ONY film having linear cutting properties) brought to market
1993 April Delivery of zipper futon compression bags to TV shopping begins
1994 April Okinawa Plant closed, production of protein powder suspended
May SUPERPURELAY™ (high transparency PP sheets for use in folding boxes, based on belt technology) brought to market
(production subcontracted to Shinko Kasei Co., Ltd.)
July Decision made to acquire new plant site (Hasunuma, Sammu) for relocation of Hikari Kagaku Kogyo Co., Ltd.´s Chiba Plant
Aug. Decision made to adopt zipper futon compression bag production equipment at Chiba Plant
1995 Feb. MULTILAY™ line No. 5 begins operation at Hyogo Plant
March R&D Center for Plastic Products set up at Hyogo Plant
(two-laboratory system consisting of Packaging Products Laboratory and Industrial Materials Laboratory)
April Idemitsu Plastics Co., Ltd. established (resulting in the Plastic Products Department specializing in development and sales of in-house products)
1996 Sept. Idemitsu Petrochemical begins studying selection of its group inflation film companies
(as a result, only Hikari Kagaku Kogyo Co., Ltd. would remain)
Dec. UNILAX™ line No. 4 begins operation at Chiba Plant
1997 March Belt processing technology licensed to German firm
April Study begins of spinning off processed resin products business from Idemitsu Petrochemical into an independent company
April Plastic Products Department and Uni Kako Head Office relocated from Ginza 4-chome, Chuo-ku, Tokyo to Shiba 5-chome, Minato-ku, Tokyo (Idemitsu Mita Building)
1998 March R&D Center for Plastic Products relocated to site of Idemitsu Kosan Co., Ltd. Central Research Laboratories (now the Advanced Technology Research Laboratories) in Sodegaura, Chiba Prefecture
March PLALOC™ technology licensed to US firm
April Commercial operation of PURE SOFTY™ (soft polyolefin sheet) begins
April Commercial operation of STRAMIGHTY™ (compound nonwoven fabric) begins
June Hikari Kagaku Kogyo Co., Ltd. made a wholly owned subsidiary of Idemitsu Petrochemical
1999 Jan. Taiyo Kasei Co., Ltd. made a wholly owned subsidiary of Idemitsu Petrochemical
Feb. Plaloc Co., Ltd. made a wholly owned subsidiary of Idemitsu Petrochemical
March UNIASLON™ technology licensed to Japanese film manufacturer
Nov. Delivery of RS cans (recyclable and reusable ink containers) begins
Dec. Hyogo Plant obtains ISO 9001 certification

2000~

Year Month Company-related events
(Idemitsu Unitech and affiliates)
2000 April Idemitsu Unitech Co., Ltd. established
June Head Office relocates to the Idemitsu Korakuen Building in Koishikawa 1-chome, Bunkyo-ku, Tokyo
Sept. Nonwoven fabric technology licensed to South Korean firm
Dec. SUPERPURELAY™ production capacity expanded at manufacturing subcontractor
Dec. Chiba Plant obtains ISO 9001 certification
2001 April PURETHERMO™ (high transparency PP sheets with superior thermoforming abilities) brought to market
June Chiba Plant begins "5 S" activities, later deployed to all sites
Aug. Decision made to manufacture PLALOC™ in China through a joint venture with a Japanese firm
Dec. MAGICTOP™ technology licensed to US firm

2002

Aug. Decision made to develop business of prism reflective sheets using belt process (the decision was later cancelled)
2003 Feb. Decision made to manufacture UNILON™ in China through a joint venture with Japanese firms
(commercial production began in 2005; later withdrew from this business with liquidation of the joint venture in Oct. 2010)
March Sale of Taiyo Kasei Co., Ltd. thermoforming business and withdrawal from that business
March Decision made to adopt R/3 system from SAP AG as back-office system
2004 April SUPERPURELAY™ production capacity expanded at the production subcontractor
May MAGICTOP™ technology licensed to South Korean firm
Aug. Full-fledged start of development of multilayered PLALOC™
Sept. PURE SOFTY™ business sold, withdrawal from that market
Oct. Hikari Kagaku Kogyo Co., Ltd. absorbed to start as Blown Film Production Section at Chiba Plant
Nov. Head Office, Branch Offices, R&D Center for Plastic Products, and Blown Film Production Section at Chiba Plant (former Hikari Kagaku Kogyo) obtain ISO 9001 certification
2005 July Decision made to expand MULTILAY™ line No. 6 at Hyogo Plant
Aug. Mataei Inc. chosen as the second production subcontractor for SUPERPURELAY™
2006 Feb. Decision made to adopt PCA accounting software as next accounting system
May Decision made to expand PLALOC™ capacity
June Decision made to merge with Idemitsu Plastics Co., Ltd.
Aug. Decision made to enter electronic materials business
Aug. Head Office, Branches, Plants, and R&D Center for Plastic Products obtain ISO 14001 certification
Oct. Head Office relocated to Shinkawa NS Building in Shinkawa 1-chome, Chuo-ku, Tokyo
2007 March Decision made on capital increase (from JPY300 million to JPY1.6 billion)
March Decision made to sell PS sheet business of Taiyo Kasei Co., Ltd.
Aug. Decision made to migrate accounts receivable and inventory management systems from R/3 to i-Renaissance
Oct. Emergency safety confirmation system adopted

2008

March Plaloc Co., Ltd. made a wholly owned subsidiary of Idemitsu Unitech
April Decision made to enter optical protection film business
Oct. Video conferencing system adopted
2009 March FPD Materials Plant begins operation with transfer of business from Taiyo Kasei Co., Ltd.
(liquidation of Taiyo Kasei Co., Ltd. completed Jan. 2010)
March Decision made on capital increase (from JPY1.6 billion to JPY2.6 billion)
Nov. Plaloc Co., Ltd. absorbed to start as Shizuoka Plant
Dec. Companywide Health and Safety Rules based on risk assessment established

2010~

Year Month Company-related events
(Idemitsu Unitech and affiliates)
2010 March Business continuity plan (BCP) established for new strains of influenza
June Decision made to change auditing firms from Ernst & Young ShinNihon LLC to Deloitte Touche Tohmatsu LLC
Dec. Business continuity plan (BCP) established for an earthquake with an epicenter directly beneath Tokyo
2011 March Although the Chiba and Shizuoka plants were struck by the Great East Japan Earthquake, the impact was minor
Oct. Decision made to expand ONY film line through a joint venture with KOHJIN Film & Chemicals Co., Ltd.
(company name K&I Film Co., Ltd. decided on in Dec.)

2012

May Head Office relocated to the NOF Shiba Building in Shiba 4-chome, Minato-ku, Tokyo
May Decision made to use the FPD Materials Plant as the second production site for PLALOC™
Oct. Name of FPD Materials Plant changed to Mie Plant
Dec. Decision made to establish a subsidiary in Thailand and construct a PLALOC™ production plant there
2013 May Construction completed on ONY film production line of K&I Film Co., Ltd. (Hyogo Plant)
Dec. PLALOC ASIA (THAILAND) CO., LTD. begins commercial PLALOC™ operation
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