Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7452463 | Apparatus for treating water | Hiroyuki Umezawa, Masahiro Iseki, Motoyuki Tsuihiji, Takashi Igarashi, Hiromichi Ohtake | 2008-11-18 |
| 7438804 | Coagulation treatment apparatus | Hiroyuki Umezawa, Masahiro Iseki, Motoyuki Tsuihiji, Koichi Hara | 2008-10-21 |
| 7378005 | Electrode for electrolysis and method of manufacturing electrode for electrolysis | Kazuhiro Kaneda, Mineo Ikematsu, Yurika Koizumi, Tsuyoshi Rakuma | 2008-05-27 |
| 7300591 | Wastewater treating method and wastewater treating apparatus | Mineo Ikematsu, Masahiro Iseki | 2007-11-27 |
| 7175765 | Method for treating for-treatment water containing organic matter and nitrogen compound | Atsushi Yamada, Mineo Ikematsu, Masahiro Iseki, Yui Ogawa, Yoshihiro Kurokawa | 2007-02-13 |
| 7157012 | Water treatment device and water treatment method using the same | Hiroyuki Umezawa, Masahiro Iseki, Tsuyoshi Rakuma, Mineo Ikematsu, Motoyuki Tsuihiji +1 more | 2007-01-02 |
| 5980211 | Circuit arrangement for driving a reciprocating piston in a cylinder of a linear compressor for generating compressed gas with a linear motor | Naoto Tojo, Shinichi Matsumura, Takafumi Nakayama | 1999-11-09 |
| 5647554 | Electric working apparatus supplied with electric power through power supply cord | Masashi IKEGAMI, Toshihiko Matsuhashi, Yoshiya Yamaue, Takashi Tanaka, Katsunori Hayashi | 1997-07-15 |
| 5402051 | Floor cleaning robot and method of controlling same | Yoshimori Fujiwara, Kazuhiro Hiratsuka, Yoshiya Yamaue, Hiroaki Arakawa, Ryuji Suzuki | 1995-03-28 |
| 5001635 | Vehicle | Fumio Yasutomi, Naoto Tojo, Yoshiya Yamaue, Makoto Yamada, Kazuyoshi Tsukamoto | 1991-03-19 |
| 4587376 | Sunlight-into-energy conversion apparatus | Haruhisa Kosaka | 1986-05-06 |
| 4493940 | Sunlight-into-energy conversion apparatus | — | 1985-01-15 |