Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869649 | Water pump apparatus | Katsuhiko Eguchi | 1989-09-26 |
| 4835505 | Magnetic ring for detecting the rotation of an object | Hiroshi Tanaka, Shinichi Tanaka | 1989-05-30 |
KH
Kenji Hattori
Dainippon Ink And Chemicals: 1 patents #20 of 90Top 25%
Reflection Technology: 1 patents #1 of 2Top 50%
Overall (1989): #22,502 of 140,708Top 20%
2
Patents 1989