Issued Patents All Time
Showing 351–365 of 365 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4900164 | Axial retainer for a cutter in a rotary drill bit | — | 1990-02-13 |
| 4747604 | Rotary shaft seal for drill bit cutters | — | 1988-05-31 |
| 4742012 | Method of making graded junction containing amorphous semiconductor device | Mitsuo Matsumura, Hideo Yamamoto, Keitaro Fukui, Toshihiro Yoshida, Yoshinobu Okayasu +1 more | 1988-05-03 |
| 4738729 | Amorphous silicon semiconductor solar cell | Toshihiko Yoshida, Mitsuo Matsumura, Hideo Yamamoto, Kunio Asai, Yoshinobu Okayasu | 1988-04-19 |
| 4687996 | Method and apparatus for measuring remaining charge of galvanic cell | Susumu Okazaki, Shunichi Higuchi, Sachio Takahashi | 1987-08-18 |
| 4643928 | Coextrusion multi-layer tubular film | Masakatsu Kimura | 1987-02-17 |
| 4554224 | Hydrogen-oxygen solid electrolyte fuel cell | Isao Ogino, Masakazu Adachi | 1985-11-19 |
| 4476092 | Method for adjusting the humidity of gas to a constant value | Isao Ogino, Teruo Kodama | 1984-10-09 |
| 4407375 | Pressure compensator for rotary earth boring tool | — | 1983-10-04 |
| 4406843 | Apparatus for adjusting the humidity of gas to a constant value | Isao Ogino, Teruo Kodama | 1983-09-27 |
| 4380575 | Method for conversion of chemical energy to electric energy | Isao Ogino, Teruo Kodama | 1983-04-19 |
| 4341542 | Manufacturing method of glass for optical transmission body | Takeshi Akamatsu, Junjiro Goto | 1982-07-27 |
| D258291 | Ink-ribbon cassette | Kaoru Iida | 1981-02-17 |
| 4244290 | Miniature printer | Kazuto Tamai, Shigeru Sawada, Norio Nakagaki | 1981-01-13 |
| 4217057 | Printer paper feed assembly including means for facilitating manual paper advance | — | 1980-08-12 |