Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8166997 | Toilet flush water supply device | Eiji Fukuzawa, Qing Zhang, Shan Lin, Fu-Shan Chen | 2012-05-01 |
| 5853562 | Method and apparatus for electrolyzing water | Toshio Eki, Akemi Kuroda, Toshiharu Otsuka | 1998-12-29 |
| 5400961 | Electromechanical thermostatic mixing valve | Osamu Tsutsui, Kinya Arita, Yasuhide Kimura | 1995-03-28 |
| 5111539 | Toilet device with system for inspecting health conditions | Yoshiki Hiruta, Naoki Tsukamura, Toshifumi Shigematsu, Hironori Yamasaki, Toshio Yamaguchi | 1992-05-12 |
| 4980933 | Washing device for parts of human body | Osamu Tsutsui, Hisato Haraga, Kiyoshi Fujino, Yoshiki Kawamura | 1991-01-01 |