Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D290263 | Industrial robot | Masato Shibayama, Takeshi Abe, Mituo Nakamura, Tutomu Takahashi, Masao Tuji | 1987-06-09 |
| D289406 | Industrial robot | Masato Shibayama, Takeshi Abe, Takashi Kawakami, Shintaro Masuda | 1987-04-21 |
| D288935 | Industrial robot | Masato Shibayama, Takeshi Abe, Takashi Kawakami, Shintaro Masuda | 1987-03-24 |