Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7314345 | Semiconductor container opening/closing apparatus and semiconductor device manufacturing method | Yoshiaki Kobayashi, Shigeru Kobayashi, Kenji Tokunaga, Koji Kato | 2008-01-01 |
| 7048493 | Method of manufacturing a semiconductor integrated circuit device which prevents foreign particles from being drawn into a semiconductor container containing semiconductor wafers | Yoshiaki Kobayashi, Shigeru Kobayashi, Kenji Tokunaga, Koji Kato | 2006-05-23 |
| 5320654 | Air cleaner for cooling device in driving system mounted on large size dump truck | — | 1994-06-14 |
| 4745997 | Offset detecting device for trolley-assisted vehicles | Hidetoshi Takei, Takumi Nozaka | 1988-05-24 |
| 4694125 | Collector device for trolley-assisted vehicles | Hidetoshi Takei | 1987-09-15 |
| 4508388 | Hoist control valve interlock system for trolley-assisted dump trucks | — | 1985-04-02 |
| 4483148 | Vehicle speed control device for use in trolley-assisted dump trucks of single phase alternating current system | — | 1984-11-20 |
| 4471231 | Alternating current feeder system for trolley-assisted dump trucks | — | 1984-09-11 |