Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6432325 | Electrode | Akira Takeishi, Makoto Takahashi, Dai Matsuoka, Masatada Yodogawa, Hiraku Harada | 2002-08-13 |
| 6383416 | Electron-emitting material and preparing process | Akira Takeishi, Makoto Takahashi, Dai Matsuoka, Masatada Yodogawa, Hiraku Harada | 2002-05-07 |
| 6172453 | Discharge lamp electrode | Masaru Fukuda, Haruo Taguchi, Shoichi Iwaya, Hiroaki Abe | 2001-01-09 |
| 5982088 | Ceramic cathode fluorescent discharge lamp | Akira Takeishi, Haruo Taguchi, Takeshi Masuda, Yasutoshi Yamaguchi | 1999-11-09 |
| 5793276 | Organic PTC thermistor | Hisanao Tosaka, Minoru Takaya, Shigeru Moriya, Hisashi Kobuke | 1998-08-11 |
| 5091820 | Ceramic piezoelectric element with electrodes formed by reduction | Shouichi Iwaya, Hitoshi Masumura | 1992-02-25 |
| 5084426 | Semiconductive ceramic composition | Shoichi Iwaya, Hitoshi Masumura, Haruo Taguchi, Tomohiro Sogabe, Shigeya Takahashi +1 more | 1992-01-28 |
| 4987515 | Ceramic capacitor with electrodes formed by reduction | Shouichi Iwaya, Hitoshi Masumura | 1991-01-22 |
| 4808883 | Discharge lamp device having semiconductor ceramic cathode | Shouichi Iwaya, Hitoshi Masumura | 1989-02-28 |