Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D305241 | Microfilm camera with reader-printer | Masahiro Fukuda | 1989-12-26 |
| D304952 | Microfilm camera reader | Masahiro Fukuda | 1989-12-05 |
| 4872974 | Apparatus for testing membrane filters, and for sterilizing liquids with use of membrane filter | Shigemitsu Hirayama, Takamichi Akashi, Akio Ikuta, Isao Sasaki | 1989-10-10 |
| 4869999 | Method of forming pattern and projection aligner for carrying out the same | Norio Hasegawa, Toshihiko Tanaka, Toshiei Kurosaki | 1989-09-26 |
| 4810087 | Portable microfilm reader | Hajime Tachibana, Eichi Saito, Tetsuo Udagawa, Koji Ohgaki, Shigeru Kojima | 1989-03-07 |
| 4810086 | Portable microfilm reader | Hajime Tachibana, Eichi Saito, Tetsuo Udagawa, Koji Ohgaki, Shigeru Kojima | 1989-03-07 |
| 4808293 | Oxygen sensor and method of making such sensor | Takeshi Nagai, Kenzo Ohji | 1989-02-28 |