Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D283509 | Telephone | Masato Shibayama, Takeshi Abe, Seiji Kinoshita, Kazuhisa Ogawa | 1986-04-22 |
| D273784 | Telephone | Masato Shibayama, Takeshi Abe, Seiji Kinoshita, Kazuhisa Ogawa | 1984-05-08 |
| D273381 | Telephone | Takeshi Abe, Masato Shibayama, Seiji Kinoshita | 1984-04-10 |