Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879578 | Paper feeding device and a paper guiding device in a copying apparatus | Masahiko Hisajima, Yutaka Shigemura, Isao Yada, Yoichiro Irie, Kiyoshi Morimoto +1 more | 1989-11-07 |
| 4874053 | Torque detecting apparatus | Shotaro Naito, Kunio Miyashita, Yasuo Noto, Noboru Sugiura, Tadashi Takahashi +5 more | 1989-10-17 |
| 4871616 | Surface-treated poly methyl silsequoxane powder | Akira Takagi | 1989-10-03 |
| 4870639 | Packet switching system | Kentaro Hayashi | 1989-09-26 |
| 4837371 | Process for concentration of an aqueous solution of amino acid | Shinji Ogawa, Seiya Iguchi, Yoh Ohmori | 1989-06-06 |
| 4831162 | Preparation process of ethylene oxide | Mutsuo Nakajima, Hisaharu Kuboyama, Tadashi Komiyama, Kenji Yoshida | 1989-05-16 |
| 4828739 | Lubricating composition and hydraulic fluid | Yoshiyuki Satoh, Shinji Kida, Masaaki Otsuki | 1989-05-09 |
| 4800160 | Process and apparatus for producing immobilized enzyme granules | Seiya Iguchi, Takeshi Noguchi, Masayo Aihara | 1989-01-24 |