Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5034597 | IC cards and information storage circuit therefor | Shiro Atsumi, Sadao Watahiki, Kohji Tanagawa | 1991-07-23 |
| 4442429 | Display apparatus utilizing a thermally color reversible display medium which has a hysteresis effect | Ichimatsu Abiko, Takashi Arae, Mio Chiba, Tomoo Araki, Hiromasa Kanno | 1984-04-10 |
| 4376282 | Optical print head with graded index fiber arrays for optical printing devices | Ichimatsu Abiko, Yukio Tokunaga, Kazuyoshi Tateishi | 1983-03-08 |
| 4318597 | Optical print head for optical printing devices | Ichimatsu Abiko, Rikuo Takano, Yasushi Hoshino, Yukio Tokunaga, Kazuyoshi Tateishi | 1982-03-09 |