Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5115179 | Portable teaching apparatus | Kenjiro Fujii, Masao Oura, Shigehisa Hagura | 1992-05-19 |
| D326043 | Electric screw driver | Hideaki Hasegawa, Fumio Tashimo, Shigehisa Hagura, Masaru Oda | 1992-05-12 |
| D325857 | Screw driver | Hideaki Hasegawa, Fumio Tashimo, Shigehisa Hagura | 1992-05-05 |