Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7259319 | Performance operator control apparatus | Yasuhiko Oba, Yuji Fujiwara, Tadaharu Kato | 2007-08-21 |
| 7161137 | Optical transducer system having light emitting elements and light detecting elements both regulable in output characteristics | Tsutomu Sasaki, Yasuhiko Ohba, Masahisa Hashimoto | 2007-01-09 |
| 7094961 | Musical instrument capable of diagnosing electronic and mechanical components and diagnostic system used therein | Yasuhiko Ohba | 2006-08-22 |
| 6933494 | Optical sensor heads exhibiting regularity in optical characteristics and optical sensor system using the same | Tadaharu Kato, Tsutomu Sasaki | 2005-08-23 |
| 6362412 | Analyzer used for plural physical quantitied, method used therein and musical instrument equipped with the analyzer | — | 2002-03-26 |
| 6297437 | Keyboard musical instrument and information processing system incorporated therein for discriminating different kinds of key motion | Tsutomu Sasaki | 2001-10-02 |
| 6271447 | Velocity calculating system for moving object widely varied in velocity method for correcting velocity and keyboard musical instrument equipped with the velocity calculating system for accurately determining loudness of sounds | Yuji Fujiwara, Yasuhiko Oba | 2001-08-07 |
| 6245985 | Data converter for enhancing resolution, method for converting data codes and keyboard musical instrument equipped with the data converter | Tsutomu Sasaki, Yuji Fujiwara | 2001-06-12 |
| 6229081 | Keyboard musical instrument, position sensing device and light-emitting controller both incorporated therein | Tsutomu Sasaki | 2001-05-08 |
| 5824930 | Keyboard musical instrument having key monitor exactly discriminating key motion | Tsutomu Sasaki | 1998-10-20 |
| 5612502 | Keyboard musical instrument estimating hammer impact and timing for tone-generation from one of hammer motion and key motion | — | 1997-03-18 |
| 5583310 | Keyboard musical instrument selectively introducing time delay into hammer detecting signal between acoustic sound mode and electronic sound mode | Nobuo Sugiyama | 1996-12-10 |
| 5552560 | Electronic keyboard musical instrument with multifunctional keyboard | — | 1996-09-03 |