Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6126875 | Process for producing a concrete product | Yoshiharu Watanabe, Tetsuo Shibata, Takashi Shimamura, Masaru Murase, Hiroyoshi Serizawa | 2000-10-03 |
| 4878866 | Thermionic cathode structure | Yoshiharu Mori, Suzuya Yamada, Mitsuaki Saito, Kenichi Ehara | 1989-11-07 |
| 4721878 | Charged particle emission source structure | Akio Rokugawa, Naoyuki Okamoto, Tsunemasa Inoue | 1988-01-26 |
| 4591754 | Electron gun for brightness | Hideo Hiraoka, Masaji Ishii | 1986-05-27 |
| 4482838 | Thermionic emission cathode | Masaji Ishii, Hideo Hiraoka | 1984-11-13 |
| 4482839 | Thermionic emission cathode and preparation thereof | Tetsuya Wada, Masaji Ishii, Akira Miyai | 1984-11-13 |
| 4311941 | Thermionic cathode supporting device | Hideo Hiraoka, Masaru Amemiya | 1982-01-19 |