Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4943795 | Oxide resistor | Takeo Yamazaki, Satoru Ogihara, Shingo Shirakawa, Shinichi Owada | 1990-07-24 |
| 4736183 | Oxide resistor | Takeo Yamazaki, Satoru Ogihara, Shingo Shirakawa, Shinichi Owada | 1988-04-05 |
| 4705761 | Ceramic structure having thermal shock resistance | — | 1987-11-10 |