Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6974881 | Production method of 4,6-diaminoresorcin | Yukihiro Kumamoto, Hisato Itou, Hideki Mizuta, Masazumi Takaoka | 2005-12-13 |
| 6686509 | Process for producing &agr;, &agr;-difluorocycloalkane compound | Kouki Fukumura, Hiroshi Sonoda, Hidetoshi Hayashi | 2004-02-03 |
| 6664364 | Selenium-containing transparent optical material | Koju Okazaki, Mamoru Tanaka, Shiro Honma, Hiroyuki Morijiri, Yoshinobu Kanemura | 2003-12-16 |
| 6482918 | Selenium-containing transparent optical material | Koju Okazaki, Mamoru Tanaka, Shiro Honma, Hiroyuki Morijiri, Yoshinobu Kanemura | 2002-11-19 |
| 6359180 | Production method of 4,6-diaminoresorcin | Yukihiro Kumamoto, Hisato Itou, Hideki Mizuta, Masazumi Takaoka | 2002-03-19 |
| 6303747 | Selenium-containing transparent optical material | Koju Okazaki, Mamoru Tanaka, Shiro Honma, Hiroyuki Morijiri, Yoshinobu Kanemura | 2001-10-16 |
| 6124424 | Selenized transparent optical material | Koju Okazaki, Mamoru Tanaka, Shiro Honma, Hiroyuki Morijiri, Yoshinobu Kanemura | 2000-09-26 |
| 5389708 | Sulfur-containing acid phosphoric ester internal release agent | Hiroyuki Yamashita, Teruyuki Nagata | 1995-02-14 |
| 5302749 | Stabilizing method of isocyanate compounds and isocyanate compositions stabilized thereby | Teruyuki Nagata, Hiroyuki Yamashita, Koju Okazaki | 1994-04-12 |
| 5194559 | Optical urethane resins and plastic lenses comprising the same | Koju Okazaki, Hiroyuki Yamashita, Teruyuki Nagata | 1993-03-16 |