Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9244291 | Method of designing colored lens | — | 2016-01-26 |
| 6322294 | Method and device for ejecting a ground improving grout into a ground | Kazuhiro Watanabe | 2001-11-27 |
| 6302624 | Method for ejecting ground improving grout into ground | Kazuhiro Watanabe | 2001-10-16 |
| 4198609 | Phase tracked loop frequency demodulator | Yukinobu Ishigaki, Teruo Muraoka, Masaki Hagihara, Kunihiro Kato | 1980-04-15 |