Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5502521 | Ophthalmometric apparatus | — | 1996-03-26 |
| 4961261 | Roll for mill and method of making a roll for a mill | Tatsuo Kojima, Tatsunori Kobayashi, Tetsuya Ohba, Takashi Yatsuzuka, Koji Tanabe | 1990-10-09 |
| 4817410 | Roll for mill | Takashi Yatsuzuka, Tetsuya Ohba, Kouji Tanabe, Tatsuo Kojima, Tatsunobu Kobayashi | 1989-04-04 |