Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10507429 | Electrochemical cell, water treatment device provided with same, and operating method for water treatment device | Shigeru Sasabe, Daisuke Suzuki, Tomoko Tani, Noriyoshi Ueya, Masahiro Ohama | 2019-12-17 |
| 10392273 | Ion exchange membrane, ion exchange membrane laminated body provided with ion exchange membrane, electrochemical cell provided with ion exchange membrane laminated body, and water treatment apparatus provided with electrochemical cell | Shigeru Sasabe, Yuji Nakata, Daisuke Suzuki, Tomoko Tani, Yoshinao Ooe | 2019-08-27 |
| 9701547 | Ion exchanger, water treatment device provided with same, and hot water supply device | Mitsuhiro Sano, Yuji Nakata, Muneto Yamada | 2017-07-11 |
| 8519305 | Polymer heating element | Keizo Nakajima, Akihiro Umeda, Takahito Ishii, Hiroshi Fukuda | 2013-08-27 |
| 6326796 | Harmonic measuring method and a current injection device for harmonic measurement | Isao Koda, Masakazu Tsukamoto, Shoji Nishimura, Yasuyuki Natsuda, Yoshifumi Minowa | 2001-12-04 |
| D374337 | Shoe sole | Noriyuki Murai, Kazumasa Yoshikawa | 1996-10-08 |
| D372354 | Shoe sole | Shigeyuki Mitsu, Wataru Ueda | 1996-08-06 |
| D366354 | Shoe sole | Kazumasa Yoshikawa, Wataru Ueda | 1996-01-23 |
| D355527 | Shoe heel protector | Kazumasa Yoshikawa | 1995-02-21 |
| 4904181 | Combustion equipment | Katsuhiko Ishikawa, Shojiro Inoue | 1990-02-27 |
| 4790746 | Vaporizing fuel burner | Katsuhiko Ishikawa, Shojiro Inoue | 1988-12-13 |