Issued Patents All Time
Showing 25 most recent of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8089817 | Precise tRCD measurement in a semiconductor memory device | — | 2012-01-03 |
| 7978543 | Semiconductor device testable on quality of multiple memory cells in parallel and testing method of the same | Tadashi Onodera | 2011-07-12 |
| 7746711 | Semiconductor device and semiconductor chips outputting a data strobe signal | — | 2010-06-29 |
| 7475662 | Actuator for valve lift controller | Yasuyoshi Suzuki, Jouji Yamaguchi, Toshiki Fujiyoshi, Akira Tsunoda, Koichi Shimizu | 2009-01-13 |
| 7246579 | Actuator for valve lift controller | Kiyoshi Kimura, Shigeru Yoshiyama, Taku Itoh, Joji Yamaguchi, Akihiko Kameshima +1 more | 2007-07-24 |
| 7234425 | Actuator for valve lift controller | Kiyoshi Kimura, Shigeru Yoshiyama, Taku Itoh, Joji Yamaguchi, Akihiko Kameshima +1 more | 2007-06-26 |
| 7193917 | Semiconductor storage device, test method therefor, and test circuit therefor | Hiroyuki Takahashi, Syouzou Uchida | 2007-03-20 |
| 7145830 | Semiconductor memory device | Hiroyuki Takahashi, Atsushi Nakagawa | 2006-12-05 |
| 7100553 | Actuator for valve lift control device having cam mechanism | Yasuyoshi Suzuki, Akihiko Kameshima, Jouji Yamaguchi | 2006-09-05 |
| 7089351 | Semiconductor memory device for preventing a late write from disturbing a refresh operation | Hiroyuki Takahashi, Atsushi Nakagawa | 2006-08-08 |
| 7054224 | Non-synchronous semiconductor memory device having page mode read/write | Hiroyuki Takahashi, Atsushi Nakagawa | 2006-05-30 |
| 7035154 | Semiconductor memory device and its test method as well as test circuit | Hiroyuki Takahashi, Yoshiyuki Katou, Shouzou Uchida, Masatoshi Sonoda | 2006-04-25 |
| 7017541 | Driving apparatus and valve lift adjusting apparatus using the same | Akira Shibata | 2006-03-28 |
| 7006401 | Semiconductor storage device and refresh control method thereof | Hiroyuki Takahashi, Takuya Hirota, Noriaki Komatsu, Atsushi Nakagawa, Susumu Takano +2 more | 2006-02-28 |
| 6947345 | Semiconductor memory device | Hiroyuki Takahashi, Atsushi Nakagawa | 2005-09-20 |
| 6941763 | Heat pump and dehumidifying apparatus | Kensaku Maeda, Shunro Nishiwaki | 2005-09-13 |
| 6944081 | Semiconductor storage and its refreshing method | Hiroyuki Takahashi, Atsushi Nakagawa, Yoshiyuki Katou, Noriaki Komatsu, Takuya Hirota +1 more | 2005-09-13 |
| 6928020 | Semiconductor memory device | Hiroyuki Takahashi, Atsushi Nakagawa | 2005-08-09 |
| 6922371 | Semiconductor storage device | Hiroyuki Takahashi, Atsushi Nakagawa | 2005-07-26 |
| 6876592 | Semiconductor memory device | Hiroyuki Takahashi, Masatoshi Sonoda, Yoshiyuki Kato, Atsushi Nakagawa | 2005-04-05 |
| 6834020 | Semiconductor storage device | Hiroyuki Takahashi, Atsushi Nakagawa | 2004-12-21 |
| 6751144 | Semiconductor storage and method for testing the same | Hiroyuki Takahashi, Takashi Kusakari | 2004-06-15 |
| 6672082 | Heat pump and dehumidifying device | Kensaku Maeda, Shunro Nishiwaki | 2004-01-06 |
| 6646956 | One-shot signal generating circuit | Hiroyuki Takahashi, Masatoshi Sonoda | 2003-11-11 |
| 6334316 | Desiccant assisted air conditioning system | Kensaku Maeda, Yoshiro Fukasaku, Toshiaki Oouchi, Rosuke Nishida | 2002-01-01 |