Issued Patents 1989
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884202 | Programmable driverless vehicle | Susumu Yoshida | 1989-11-28 |
| 4874636 | Method for preparing magnetic recording medium | Tsutomu Okita, Hiromi Nakahara | 1989-10-17 |
| 4865924 | Magnetic recording medium | Shinji Saito, Chiaki Mizuno, Toshio Ono | 1989-09-12 |
| 4863793 | Magnetic recording medium | Shinji Saito, Toshihiko Miura | 1989-09-05 |
| 4857388 | Magnetic recording medium | Yasuo Tamai | 1989-08-15 |
| 4855694 | Lumped element circulator having a conductive pedestal frame structure | — | 1989-08-08 |
| 4851289 | Magnetic recording medium | Shinji Saito, Toshihiko Miura, Nobuo Yamazaki, Hiroaki Araki | 1989-07-25 |
| 4830019 | Electronic blood pressure meter | Osamu Shirasaki, Yoshinori Miyawaki, Kazuhiro Matumoto | 1989-05-16 |
| 4820581 | Magnetic recording medium | Shinji Saito, Akihiro Matsufuji, Yasuo Tamai | 1989-04-11 |
| 4814992 | Fuel injection control system for engine | Hidetoshi Sakurai, Nobutoshi Maruyama | 1989-03-21 |
| 4806417 | Magnetic recording medium | Shinji Saito, Hiroaki Araki, Kiyomi Ejiri, Chiaki Mizuno | 1989-02-21 |
| 4803520 | Electrophotographic apparatus for making superposed images | Masahiro Tomosada, Yoshikuni Tohyama, Hideki Adachi, Tadashi Suzuki, Naoyuki Ohki | 1989-02-07 |
| 4803131 | Magnetic recording medium | Shinji Saito, Hiroaki Araki, Kiyomi Ejiri, Chiaki Mizuno | 1989-02-07 |
| 4803120 | Magnetic tape having a leader tape | Chiaki Mizuno, Yasuo Tamai | 1989-02-07 |
| 4794797 | Method of detecting structural abnormality of substance | — | 1989-01-03 |