Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028702 | Dust-proof film | Muneyuki Matsumoto | 1991-07-02 |
| 4996106 | Pellicle | Hitomi Matsuzaki | 1991-02-26 |
| 4828640 | Method of producing films using a peeling jig | Toshio Kaya, Makoto Fujimoto | 1989-05-09 |
| 4812279 | Process for preparation of cellulose ester films | Masahiro Kondo, Noriake Ohishi | 1989-03-14 |
| 4355190 | Process for recovery of resorcinol from aqueous resorcinol solution containing hydroquinone | Hirohiko Nambu, Fujihisa Matsunaga | 1982-10-19 |
| 4339615 | Process for producing resorcinol | Ichiro Imai, Fujihisa Matsunaga, Masayasu Isibasi, Tohru Taguchi | 1982-07-13 |
| 4283567 | Method for recovering resorcinol | Hirohiko Nambu, Masayasu Isibasi | 1981-08-11 |
| 4283570 | Process for preparing resorcinol | Noriyuki Hirowatari, Takayuki Nakamura | 1981-08-11 |
| 4267387 | Process for preparation of aromatic hydroperoxides | Ichiro Imai, Isao Hashimoto, Keiji Suzuki | 1981-05-12 |
| 4239921 | Process for purification of crude resorcinol | Isao Hashimoto, Toru Taguchi, Hirohiko Nambu | 1980-12-16 |
| 4192958 | Method for recovering resorcinol | Isao Hashimoto, Hirohiko Nambu | 1980-03-11 |