Patents per Year
Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6644863 | Angled optical fiber connector | Yukio Kaneko, Hiromu Yorozu | 2003-11-11 | $942,000 |
| 5835612 | Speaker apparatus | Masao Fujihira, Makoto Yamagishi | 1998-11-10 | $247,000 |
| 5115473 | Transducer having two ducts | Makoto Yamagishi, Masao Fujihira, Ikuo Shinohara | 1992-05-19 | $141,000 |