Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5026256 | Variable speed pumping-up system | Takao Kuwabara, Hiroto Nakagawa, Eizo Kita | 1991-06-25 |
| 5002009 | Furnace for formation of black oxide film on the surface of thin metal sheet and method for formation of black oxide film on the surface of shadow mask material by use of said furnace | Toshitomo Hayami, Humio Shibata, Katsumi Iguchi, Takashi Ono, Takashi Ishimoto | 1991-03-26 |
| 4900248 | Skid rail | Kazuto Terai, Susumu Isobe, Kenji Tsukuda, Hiroshi Kobayashi | 1990-02-13 |
| 4892419 | Lubricated bearing apparatus for hydraulic machinery | Ichiro Hitomi, Osamu Sugimoto, Teiji Horita | 1990-01-09 |
| 4859251 | Furnace for formation of black oxide film on the surface of thin metal sheet and method for formation of black oxide film on the surface of shadow mask material by use of said furnace | Toshitomo Hayami, Humio Shibata, Katsumi Iguchi, Takashi Ono, Takashi Ishimoto | 1989-08-22 |
| 4746268 | End face mechanical shaft seal for use in hydraulic machines and seal ring assembly for use in the shaft seal | Osamu Sugimoto, Teiji Horita, Katsutoshi Nii, Koozi Aizawa, Kazuhiko Kawaike +1 more | 1988-05-24 |
| 4245825 | Shock absorber for wheeled vehicle | Masaru Ohtomo, Sumio Hiroi, Siniti Higuti | 1981-01-20 |