Corporate Information
Company history
| 1925 | Established Yamamoto Chemical Research Institute at Jyoto-Ku, Osaka Launched domestic manufacturing of organic dyes |
|---|---|
| 1954 | Started manufacturing of oil-soluble dyes for felt pens |
| 1955 | Changed the company name to Yamamoto Chemical Gosei, Inc. |
| 1956 | Started manufacturing of quinizarin and its derivatives |
| 1963 | Transferred its head office and plant to Yao City |
| 1966 | Started manufacturing of 2-ethyl-anthraquinone |
| 1969 | Concluded the joint research agreement with NCR Company (present API Company) in U.S.A. |
| 1970 | Started manufacturing of the dye “One Dye Black” for heat sensitive・pressure-sensitive recording papers Started manufacturing of 2-amyl-anthoraquinone |
| 1971 | Capital participation by Mitsui Chemicals, Inc. and Mitsui & Co., Ltd. |
| 1980 | Started manufacturing of 2-amyl-anthoraquinone H |
| 1986 | Opened Omuta Plant Changed the company name to Yamamoto Chemicals, Inc. Listed on the second section of the Osaka Securities Exchange |
| 1988 | Increased the capital to ¥2,134,152,000.- |
| 1991 | Took over ESCO Company, Inc. in U.S.A. |
| 1993 | Started manufacturing of NIR (near-infrared resonance) photosensitive dyes for optical disks |
| 1995 | Acquired ISO9002 Certification for the Omuta Plant |
| 1996 | Acquired ISO9002 Certification for the Yao Plant |
| 2002 | Acquired ISO14001 Certification for all facilities of Yamamoto Chemicals, Inc. |
| 2003 | Started manufacturing of dyes for CTP |
| 2006 | Delisted on the second section of the Osaka Securities Exchange Mitsui Chemicals, Inc. acquired 100% ownership of Yamamoto Chemicals, Inc. Started manufacturing of dyes for Organic EL Started manufacturing of dyes for PDP Started manufacturing of dyes for liquid crystal |
| 2007 | Decreased the capital to \350,000,000.- |
| 2009 | Transferred the Functional Coloring Materials Division from Mitsui Chemicals, Inc. to Yamamoto Chemicals, Inc. Started manufacturing of dyes for polarization Started manufacturing of dyes for sublimation |
| 2018 | Moved Tokyo office from Hamamatsu-cho Minato-Ku to Higashi-Shimbashi Minato-Ku |
| 2019 | Construct a pilot lab at the Yao Plant |
| 2020 | Begin the production of pigments for color filters |
Contact Us
For consultations or queries regarding
Yamamoto Chemicals and its products,
feel free to contact us via telephone
or the email inquiry form.
Telephone queries: [Tokyo Office]
+81-3-6402-2191Weekdays 9:00 a.m. to 5:00 p.m.,
closed Saturdays, Sundays and public holidays