Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8236639 | Semiconductor device manufacturing method | Hiroaki Kikuchi, Katsunori Kondo, Osamu Takahashi, Tomoaki Yamabayashi | 2012-08-07 |
| 8190342 | Hydraulic vehicle | — | 2012-05-29 |
| 8047120 | Hydraulic piston pump with a balance valve | Mitsuru Arai | 2011-11-01 |
| 7296323 | Dust collector | Yoshimasa Hayama, Daisuke Kakegawa, Syuichi Okada, Hidekazu Harada | 2007-11-20 |
| 7080001 | System for monitoring a period of an operation clock signal of a CPU and stopping operations of the CPU when the period is out of a predetermined allowable range | Naokatsu Moriyama | 2006-07-18 |
| 6868918 | Power tool driven by linear motor | — | 2005-03-22 |
| 6729412 | Power tool driven by linear motor | — | 2004-05-04 |
| 6705408 | Power tool with a linear motor | Houng Joong Kim | 2004-03-16 |
| 6495932 | DC power source unit | Chikai Yoshimizu, Hiroaki Orikasa, Takahiko Shimada, Eiji Nakayama, Kazuhiko Funabashi +1 more | 2002-12-17 |
| 6172860 | DC power source unit alarming before electrically powered tool is overheated and stopping power supply thereafter | Chikai Yoshimizu, Hiroaki Orikasa, Takahiko Shimada, Eiji Nakayama, Kazuhiko Funabashi +1 more | 2001-01-09 |
| 6152013 | Hydraulically actuated breaker with lost-motion prevention device | Mitsuru Arai, Takayuki Muto, Naoki Ishizaki | 2000-11-28 |
| 6114839 | Battery charging apparatus with error detection | Nobuhiro Takano, Kenrou Ishimaru, Toshio Mizoguchi, Shigeru MORIYAMA | 2000-09-05 |
| 6056070 | Hydraulic ramming apparatus | Takayuki Muto, Mitsuru Arai | 2000-05-02 |
| 5884713 | Vibration generating apparatus | Naoki Ishizaki | 1999-03-23 |
| 5723914 | Device for preventing an electrical equipment from re-powering after recovery of service interruption | Eiji Nakayama, Masateru Niyada | 1998-03-03 |
| 5677615 | Service-life discriminating feature added to a battery charger | Nobuhiro Takano | 1997-10-14 |
| 5621302 | Battery charger monitoring battery voltage and/or temperature at relevant sampling interval | — | 1997-04-15 |
| 5619116 | Universal battery charger chargeable with relevant current dependent on cell number | Nobuhiro Takano, Mitsuo Ogura | 1997-04-08 |
| 5558476 | Dual-motor-driven drilling machine and method of controlling currents flowing in motors | Toshiaki Uchida, Masateru Niyada, Hiroaki Orikasa, Hiroyasu Ishikawa | 1996-09-24 |
| 5477678 | Hydraulic circuit system | Kiyoshi Shirai, Terruo Akiyama, Naoki Ishizaki, Takahide Takiguchi | 1995-12-26 |
| 5444353 | Battery charger | Nobuhiro Takano | 1995-08-22 |
| 5410238 | Rapid battery charger with slow charge mode at a low temperature | Takahito Ishizuka | 1995-04-25 |
| 5342280 | System for management of body rotation of centrifuge | Yoshitaka Niinai, Akio Nagata, Norihisa Sagawa, Eiji Nakayama, Mitsutoshi Yotsuyanagi +2 more | 1994-08-30 |
| 5279122 | Hydraulic circuit apparatus for supplying fluid under pressure into hydraulic cylinders for work implement | Kiyoshi Shirai, Teruo Akiyama, Naoki Ishizaki, Takahide Takiguchi | 1994-01-18 |
| 5218897 | Hydraulic circuit apparatus for operating work-implement actuating cylinders | Kiyoshi Shirai, Terruo Akiyama, Naoki Ishizaki, Takahide Takiguchi | 1993-06-15 |