Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6392084 | Method for production of organic fluorine compound | Koichi Hirota | 2002-05-21 |
| 6136488 | Flash fixing toner | Mitsuo Kushino, Tatsuhito Matsuda, Makoto Matsumoto | 2000-10-24 |
| 6069244 | Phthalocyanine compound, method for production thereof, and use thereof | Kiyoshi Masuda | 2000-05-30 |
| 6034236 | Method for producing of phthalocyanine compound | Minoru Aoki | 2000-03-07 |
| 6034264 | Method for production of nuclear halogenated aromatic compound possessing cyano groups | Koichi Hirota, Teruhisa Kajiwara, Norimasa Okuda, Hisakazu Shindo, Yoshiro Hanayama +4 more | 2000-03-07 |
| 5998609 | Phthalocyanine compounds, process for preparing the same, and optical recording medium made using the same | Minoru Aoki, Kiyoshi Masuda, Yasunori Okumura | 1999-12-07 |
| 5968688 | Color filter grade photosensitive resin coloring composition and color filter using the same | Kiyoshi Masuda, Minoru Aoki | 1999-10-19 |
| 5817843 | Quinizarin compound, method for production thereof, and use therefor | Kiyoshi Masuda, Yukie Tamaura | 1998-10-06 |
| 5789582 | Method for production of nuclear halogenated aromatic compound possesing cyano groups | Koichi Hirota, Teruhisa Kajiwara, Norimasa Okuda, Hisakazu Shindo, Yoshiro Hanayama +4 more | 1998-08-04 |
| 5763702 | Method for production of benzene halilde | Yasunori Okumura | 1998-06-09 |
| 5712332 | Method for absorbing heat radiation | Takashi Yodoshi, Ken Morita, Michio Matsuura | 1998-01-27 |
| 5608091 | Quinizarin compound, method for production thereof, and use therefor | Kiyoshi Masuda, Yukie Tamaura | 1997-03-04 |
| 5359056 | Phthalocyanine compounds, production method thereof, and near infrared ray absorption materials containing the same | Takashi Yodoshi, Hideki Itoh, Miho Onozaki | 1994-10-25 |
| 5166025 | Matric plate for electrophotographic platemaking, production thereof and printing plate | Kiyoshi Masuda, Hideki Ito, Takashi Yodoshi | 1992-11-24 |
| 5072018 | Method for production of cyclohexanecarboguanamine | Hidetaka Yatagai, Jiro Iriguchi, Souichi Yamada, Tsuguo Takaya | 1991-12-10 |
| 4973689 | Method for production of cyclohexanecarboguanamine | Hidetaka Yatagai, Jiro Iriguchi, Souichi Yamada, Tsuguo Takaya | 1990-11-27 |
| 4782179 | 3-amino-2,4,5-trifluorobenzoic acid and a method for manufacture thereof | Koichi Hirota, Tsuguo Takaya | 1988-11-01 |
| 4769492 | Method for production of 2,3,4,5-tetrafluorobenzoic acid | Isao Okitaka, Toshiaki Nakamura, Koichi Hirota | 1988-09-06 |
| 4689179 | Method for production of fluorinated quinones | Koichi Hirota, Hideki Itoh, Masaru Awashima, Toshiaki Nakamura | 1987-08-25 |
| 4684734 | Method for manufacture or organic fluorine compounds | Masaru Awashima, Isao Okitaka, Toshiaki Nakamura | 1987-08-04 |
| 4647411 | 5,6,7,8-tetrafluoroanthraquinone derivatives | Teijiro Kitao, Masaru Matsuoka | 1987-03-03 |
| 4572805 | 2,3,5,6-Tetrafluorophenyl (meth) acrylates and method for production thereof | Koichi Hirota, Isao Okitaka, Toshiaki Nakamura | 1986-02-25 |