Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7029793 | Nonaqueous electrolyte lithium secondary cell | Hiroe Nakagawa, Syuichi Izuchi, Takaaki Iguchi, Kenichi Takeuchi, Keiichi Yamamoto +1 more | 2006-04-18 |
| 5750285 | Life indicator and lead-acid storage battery with life indicator | Tadamasa Akutagawa, Aya Nishino | 1998-05-12 |
| 5572418 | Quasi-resonant PWM inverter | Gunji Kimura, Toshihisa Shimizu, Akio Toba | 1996-11-05 |
| 5485744 | Sulfuric acid concentration sensor for lead storage battery | Tadamasa Akutagawa | 1996-01-23 |
| 5458766 | Life indicator and cartridge for indicating total water flow | Katuo Ehara, Tadashi Okutoh, Aya Nishino | 1995-10-17 |
| 5420497 | Direct current power unit having main and secondary direct current power supplies | Gunji Kimura, Osawa Hiroshi | 1995-05-30 |
| 5279718 | Method of electroosmotically dehydrating sludge | Shiro Kondo | 1994-01-18 |
| 5273841 | Sulfuric acid concentration sensor and lead acid battery equipped with sulfuric acid concentration sensor | Takakazu Yamamoto | 1993-12-28 |
| 5092974 | Electrode and method for compressive and electro-osmotic dehydration | Shiro Kondo, Takeshi Suwa, Kishio Miwa, Tamotsu Takizawa | 1992-03-03 |
| 5034111 | Compressive and electro-osmotic dehydrator | Shiro Kondo, Takeshi Suwa, Osamu Muroi | 1991-07-23 |
| 4839033 | Apparatus for separating spherical from non-spherical particles | Saburo Yashima | 1989-06-13 |
| 4477708 | Apparatus for preheating the ends of upset steel pipes | Katsumi Sakurai, Tatsuo Ono, Kanji Tsuruoka, Masaru Watanabe | 1984-10-16 |