Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10533242 | Steel for cold forging | Takahiko Kohtake, Makoto Okonogi | 2020-01-14 |
| 9595376 | Non-oriented electrical steel sheet and manufacturing method thereof | Masafumi Miyazaki, Hideaki Yamamura, Takeshi Kubota, Yousuke Kurosaki, Kazumi Mizukami +1 more | 2017-03-14 |
| 9085817 | Non-oriented electrical steel sheet and manufacturing method thereof | Masafumi Miyazaki, Hideaki Yamamura, Takeshi Kubota, Yousuke Kurosaki, Kazumi Mizukami +1 more | 2015-07-21 |
| 8840734 | Non-oriented electrical steel sheet | Masafumi Miyazaki, Hideaki Yamamura | 2014-09-23 |
| 8567233 | Gas charge container, atom probe apparatus, and method for analyzing hydrogen position in material | Jun Takahashi, Haruo Ohmori | 2013-10-29 |
| 8562906 | Lead-free solder alloy, solder ball and electronic member, and lead-free solder alloy, solder ball and electronic member for automobile-mounted electronic member | Masamoto Tanaka, Tsutomu Sasaki, Takayuki Kobayashi, Masayoshi Fujishima | 2013-10-22 |
| 8304141 | Stainless steel, titanium, or titanium alloy solid polymer fuel cell separator and its method of production and method of evaluation of warp and twist of separator | Hiroshi Kihira, Michio Kaneko, Mitsuharu Yamagata, Koki Tanaka, Yoichi Ikematsu +3 more | 2012-11-06 |
| 7807281 | Stainless steel, titanium, or titanium alloy solid polymer fuel cell separator and its method of production and method of evaluation of warp and twist of separator | Hiroshi Kihira, Michio Kaneko, Mitsuharu Yamagata, Koki Tanaka, Yoichi Ikematsu +3 more | 2010-10-05 |
| 6643150 | Control device for power converter | — | 2003-11-04 |
| 6507505 | Power conversion device | Toshiaki Oka | 2003-01-14 |
| 6229722 | Multiple inverter system | Kosaku Ichikawa, Akio Hirata, Kazuhiro Satoh | 2001-05-08 |
| 5929665 | Power converter with voltage drive switching device monitored by device parameters and electric parameters | Kosaku Ichikawa, Akio Hirata, Kazuhiro Satoh | 1999-07-27 |
| 5621257 | Gate drive circuit for voltage-driven type power switching device | — | 1997-04-15 |
| 5191519 | Current sharing control in a parallel inverter system | — | 1993-03-02 |
| 4752705 | Off-gate circuit for a GTO thyristor | Yukinori Tsuruta | 1988-06-21 |
| 4721861 | Turbine helper drive apparatus | Suzuo Saito, Teruo Nakagawa, Akio Hirata, Tadao Mose, Kohsaku Ichikawa +1 more | 1988-01-26 |