Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7133852 | Electricity generation equipment management system | Tsutomu Kurokawa, Yoshiteru Misumi | 2006-11-07 |
| 7060890 | Keyboard musical instrument structure | Nobuo Sugiyama | 2006-06-13 |
| 7049576 | Keyboard musical instrument having easily installable optical position transducer with coupler for coupling optical modulator to moving object | Tadaharu Kato, Shigeru Muramatsu | 2006-05-23 |
| 6933435 | Easily installable optical position transducer and keyboard musical instrument having the same | Tadaharu Kato, Shigeru Muramatsu | 2005-08-23 |
| 6846982 | Key depression detection apparatus for keyboard instrument | — | 2005-01-25 |
| 6461512 | Method of disinfecting a deionized water producing apparatus and method of producing deionized water | Junya Hirayama | 2002-10-08 |
| 6452079 | Keyboard musical instrument equipped with hammer stopper promptly driven for rotation by means of rigid link work | Nobuo Sugiyama | 2002-09-17 |
| 6288313 | Keyboard musical instrument having split rear top board and/or visual display unit | Atsushi Matsumura | 2001-09-11 |
| 6221183 | High-strength and low-thermal-expansion alloy, wire of the alloy and method of manufacturing the alloy wire | Koji Sato, Rikizo Watanabe, Takehiro Ohno, Yoshiki Masugata, Minoru Takuwa +1 more | 2001-04-24 |
| 5980716 | Water treatment apparatus for a fuel cell system | Hiroshi Horinouchi, Kunihiro Nishizaki, Fumio Azakami, Toshiaki Deguchi | 1999-11-09 |
| 5649714 | Tool holder | Teruhisa Uchida, Takanori Hashimoto, Koichi Sugiura, Kenji Ueda | 1997-07-22 |
| 5616880 | Keyboard musical instrument equipped with hammer shank stopper where hammer assembly rebounds without deflection of shank | Hajime Hayashida, Takashi Aoyagi, Satoshi Inoue, Ringi Nozue, Kiyoshi Kawamura | 1997-04-01 |
| 4641565 | Upright piano | Hiroki Tachida, Takane Sato | 1987-02-10 |
| 4593594 | Housing for upright pianos | Hiroki Tachida, Takane Sato | 1986-06-10 |