Issued Patents All Time
Showing 151–175 of 198 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4988652 | Process for recovering catalyst for use in preparing .alpha.-(4-isobutylphenyl)propionic acid | Yoshikazu Shima, Yoshifumi Sato | 1991-01-29 |
| 4985510 | Crystalline N-methoxymethylated nylon and nylon composition | Setsuo Akiyama, Hisanobu Monobe, Kazuo Naito, Toshio Honda | 1991-01-15 |
| 4937362 | Process for production of .alpha.-(4-isobutylphenyl)propionic acid | Yoshikazu Shima | 1990-06-26 |
| 4859042 | Zoom lens | — | 1989-08-22 |
| 4854681 | Compact zoom lens | Masatake Kato, Sadahiko Tsuji, Muneharu Sugiura | 1989-08-08 |
| 4789227 | Zoom lens | Tsunefumi Tanaka, Keiji Ikemori, Masatake Kato | 1988-12-06 |
| 4763998 | Compact zoom lens | Sadahiko Tsuji, Muneharu Sugiura, Masatake Kato | 1988-08-16 |
| 4760171 | Process for producing ethanol | Nobuo Isogai, Akitomo Uda, Motoyuki Hosokawa | 1988-07-26 |
| 4730908 | Zoom lens | — | 1988-03-15 |
| 4710007 | Camera system with lens coupling member | — | 1987-12-01 |
| 4702567 | Zoom lens | Masatake Kato, Keiji Ikemori, Tsunefumi Tanaka | 1987-10-27 |
| 4698810 | Data recording and reproducing system with error correction capability using ECC and CRC codes | Yasushi Fukuda, Takafumi Oka | 1987-10-06 |
| 4682860 | Ultrasmall size zoom lens | Akira Tajima | 1987-07-28 |
| 4643556 | Automatic focusing adjustment device | Akihiro Fujiwara | 1987-02-17 |
| 4544250 | Optical system for camera with a viewfinder | Sadahiko Tsuji | 1985-10-01 |
| 4518123 | Method for controlling the pulverization and dryness of flammable materials passing through a pulverizer, and method of controlling the pulverizing rate of the pulverizer | Kenjiro Motonaga, Kozo Tanaka | 1985-05-21 |
| 4500730 | Process for producing aromatic polycarboxylic acid | Toru Tanaka, Masanori Hataya, Yukio Sakai, Yasufumi Hamada | 1985-02-19 |
| 4490554 | Process for crystallizing trimellitic acid | Toru Tanaka, Masanori Hataya | 1984-12-25 |
| 4482914 | Contact structure of semiconductor device | Toru MANO, Takeshi Fukuda, Toshitaka Fukushima, Kouji Ueno | 1984-11-13 |
| 4482218 | Zoom lens | — | 1984-11-13 |
| 4468592 | Strobo apparatus | Hisashi Ogura | 1984-08-28 |
| 4466707 | Variable magnification lens system | Keiji Ikemori | 1984-08-21 |
| 4465342 | Zoom lens | Shigeyuki Suda | 1984-08-14 |
| 4460060 | Vibratory diaphragm for loudspeaker | Shigeru Hasumi, Takashi Nishidoi | 1984-07-17 |
| 4455065 | Optical device | Yukichi Niwa, Mitsutoshi Ohwada, Yasuo Ogino, Noboru Koumura | 1984-06-19 |