Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854064 | Integrated article bearing indicia and manufacturing processes therefor | — | 1989-08-08 |
| 4853896 | Write driver circuit of semiconductor memory device | — | 1989-08-01 |
| 4847048 | Aluminum die-casting alloys | Naomi Nishi, Shigetake Kami | 1989-07-11 |
| 4843046 | Ceramic composition of high dielectric constant comprising PbO.sub.3, La.sub.2 O.sub.3, MO, ZrO.sub.2 and TiO.sub.2 | Takeshi Inoue, Masashi Saito | 1989-06-27 |
| 4837342 | Prostacyclin analogue, and blood circulation improving agent and anti-ulcer composition containing it as active ingredient | Masakatsu Shibasaki, Atsuo Takahashi, Tuyoshi Aoki, Kentaro Kogi, Yozo Nishimiya +1 more | 1989-06-06 |
| 4825110 | Differential amplifier circuit | Yasuo Kobayashi | 1989-04-25 |
| 4805277 | Process for producing a grid for use in lead acid batteries | Hiroshi Yasuda, Sadao Furuya, Naoto Hoshihara, Katsuhiro Takahashi, Teruaki Ishii | 1989-02-21 |