Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11531001 | Controlled potential electrolysis gas sensor | Shinji UESUGI, Kei Ono | 2022-12-20 |
| 8959981 | Motion state of impacting and impacted object measuring apparatus and method | Masayoshi Arakawa, Tetsuya Nakamura, Takanori Shibui, Tatsuya Ishikawa, Masataka Kai | 2015-02-24 |
| 5857924 | Golf ball | Masataka Kai, Toshio Chikaraishi | 1999-01-12 |