Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845900 | Method and apparatus for grinding straight-edged cutting tools to a fine finish | Eiiti Suzuki, Isao Mizuno | 1989-07-11 |
| 4808835 | Power generation cassette type power plant for marine electric propulsion and a controller thereof | Masanari Tsuji, Yuji Tani, Akira Zaitsu, Kojiro Shimamoto, Masaaki Hashii +2 more | 1989-02-28 |