Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867136 | Endoscope apparatus | Akira Suzuki, Susumu Takahashi, Takeaki Nakamura, Tatsuya Yamaguchi, Takashi Tsukaya +19 more | 1989-09-19 |
| 4867546 | Objective lens system for an endoscope | Kimihiko Nishioka, Kikumi Tojo | 1989-09-19 |
| 4844832 | Containing an arylsulfonic acid, a phenol and a naphalenic solvent | Masakazu Kobayashi, Shingo Asaumi, Hisashi Nakane | 1989-07-04 |
| 4833067 | Developing solution for positive-working photoresist comprising tmah and non-ionic surfactant | Hatsuyuki Tanaka, Hidekatsu Kohara, Yoshiyuki Sato, Shingo Asaumi, Toshimasa Nakayama +1 more | 1989-05-23 |
| 4832883 | Method and apparatus for controlling screw positions in injection molding machine | Masashi Kato | 1989-05-23 |
| 4806001 | Objective for an endoscope | Minoru Okabe, Kimihiko Nishioka | 1989-02-21 |
| 4797348 | Method of forming a positive resist pattern in photoresist of o-naphthoquinone diazide and bisazide with UV imaging exposure and far UV overall exposure | Yoichi Nakamura, Shirushi Yamamoto, Takashi Komine, Hisashi Nakane | 1989-01-10 |