Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5993893 | Evaluation method for polycrystalline silicon film | — | 1999-11-30 |
| 5181142 | Plastic lens and method of forming an anti-reflecting layer on a plastic lens | Kazuo Asai | 1993-01-19 |
| 5116644 | Plastic lens and method of forming anti-reflecting layer on a plastic lens | Kazuo Asai | 1992-05-26 |
| 4759711 | Calcination apparatus for use in fluidized-bed burning installation for powdery raw material | Toshikazu Ichiyanagi, Kanzaburo Suto, Tamotsu Negishi, Yasuo Komatsu, Shoji Sekine +3 more | 1988-07-26 |