Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9868161 | Ball-end mill and insert | Yasuhiro Kiuchi, Yoshiyuki Kobayashi, Yuuki Hayashi | 2018-01-16 |
| 9352401 | Indexable ball end mill | Yoshiyuki Kobayashi, Haruhisa Higasayama, Seiji Niwa | 2016-05-31 |
| 8585329 | Ball end mill | Haruhisa Higasayama | 2013-11-19 |
| 6884006 | Insert-exchangeable, rotary tool and throwaway insert | — | 2005-04-26 |
| 6413023 | Indexable type rotary milling tool and indexable insert | — | 2002-07-02 |
| 4830525 | Typewriter with pivoting keyboard | Yojiro Fukui, Yoshimi Takahashi | 1989-05-16 |
| D299249 | Typewriter | Taro Kasagi, Kenji Tamada | 1989-01-03 |
| 4561791 | Alternate ribbon feed mechanism for fabric and carbon ribbon cassettes | — | 1985-12-31 |
| 4538931 | Drive mechanism including a one-way spring clutch for a typewriter | — | 1985-09-03 |