Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10418006 | Laminated plyboard for musical instrument, method for manufacturing the same, and musical instrument | Hiroaki Ohmuro, Yukimasa Okumura | 2019-09-17 |
| 7074844 | Adhesives | Ritsuo Iwata, Tomohide Ogata, Kazunari Suzuki, Koji Nakajima | 2006-07-11 |
| 4963214 | Method for producing a wooden decorative article | Ritsuo Iwata, Tomohide Ogata, Kaneo Omoto, Koji Nakajima, Yutaka Miyamoto | 1990-10-16 |
| 4911969 | Decorative sheet and method of manufacturing the same | Tomohide Ogata, Ritsuo Iwata | 1990-03-27 |