Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11068289 | Installation assist apparatus, installation assist method, and computer program product | Hideki Ohkawa, Ryuichi Sunagawa, Hiroya Kakimoto, Masayuki Tsuda | 2021-07-20 |
| 10823601 | Water level measuring system, information processing apparatus, and water level measuring method | Ryuichi Sunagawa | 2020-11-03 |
| 10698098 | Millimeter wave radar and millimeter wave radar detection method | Ryuichi Sunagawa, Yutaka Aoki | 2020-06-30 |
| 10571327 | Water level measuring device | Ryuichi Sunagawa | 2020-02-25 |
| 7833378 | Method for manufacturing optical disc and optical disc | Kazunori Ishikura, Keiichi Kagawa, Hidetoshi Egawa, Yuji SHIBUYA, Shinji Miki +1 more | 2010-11-16 |
| 7303381 | Device for manufacturing optical disc, method of manufacturing the same, and optical disc | Kazunori Ishikura, Keiichi Kagawa, Hidetoshi Egawa, Yuji SHIBUYA, Shinji Miki +1 more | 2007-12-04 |