Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10304435 | Musical instrument and acoustic transducer device | Shingo EKUNI | 2019-05-28 |
| 9520107 | Keyboard musical instrument | Toshiro Sakai | 2016-12-13 |
| 9269335 | Installation structure for acoustic transducer | Kenta Ohnishi, Hiroyuki Murakami, Yuji Takahashi, Yoshiya Matsuo, Shinji SUMINO | 2016-02-23 |
| 7642448 | Optical transducer system for monitoring movable parts, optical modulator and musical instrument using the same | — | 2010-01-05 |
| 7514627 | Keyboard musical instrument having sensor unit exactly located by means of plural locators | Shigeru Muramatsu | 2009-04-07 |
| 7259319 | Performance operator control apparatus | Yasuhiko Oba, Yuji Fujiwara, Tomoyuki Ura | 2007-08-21 |
| 7259313 | Musical instrument system capable of locating missing remote controller, musical instrument, remote controller and method use therein | Yoshitake Suzuki, Toshio Yamayoshi, Yuji Fujiwara, Tatsuya Makino | 2007-08-21 |
| 7186967 | Optical transducer having optical fibers resiliently warped near optical devices and musical instrument using the same | — | 2007-03-06 |
| 7132643 | Optical transducer having optical modulator in the vicinity of rotational axis of moving object and musical instrument using the same | — | 2006-11-07 |
| 7121737 | Light emitting unit operative at high coupling efficiency, optical sensor system and musical instrument using the same | Shigeru Muramatsu, Tsutomu Sasaki | 2006-10-17 |
| 7116849 | Optical transducer having optical fiber plug transparent to curing light and non-transparent to sensing light | — | 2006-10-03 |
| 7049576 | Keyboard musical instrument having easily installable optical position transducer with coupler for coupling optical modulator to moving object | Shigeru Muramatsu, Shigeaki Sato | 2006-05-23 |
| 7044655 | Multicore optical fiber connector for enhancing uniformity of amount of incident light and optical sensor array using the same | Shigeru Muramatsu | 2006-05-16 |
| 6940005 | Keyboard musical instrument for exactly producing tones and hammer sensor varying output signal exactly representing physical quantity of hammer | Shigeru Muramatsu, Tsutomu Sasaki | 2005-09-06 |
| 6933435 | Easily installable optical position transducer and keyboard musical instrument having the same | Shigeru Muramatsu, Shigeaki Sato | 2005-08-23 |
| 6933494 | Optical sensor heads exhibiting regularity in optical characteristics and optical sensor system using the same | Tomoyuki Ura, Tsutomu Sasaki | 2005-08-23 |
| 6870151 | Shutter, optical sensor system using the same and shutter holder incorporated therein | — | 2005-03-22 |
| 6815603 | Unbreakable and economical optical sensor array and keyboard musical instrument using the same | Shigeru Muramatsu | 2004-11-09 |
| 6515213 | Keyboard musical instrument for exactly producing tones and hammer sensor varying output signal exactly representing physical quantity of hammer | Shigeru Muramatsu, Tsutomu Sasaki | 2003-02-04 |
| 6515565 | Electromagnetic device equipped with solenoid, automatic player using the same and automatic player keyboard musical instrument | Shigeru Muramatsu | 2003-02-04 |
| 6420642 | Automatic player incorporated in keyboard musical instrument and plunger sensor for detecting motion of plunger | Shigeru Muramatsu | 2002-07-16 |
| 6403872 | Keyboard musical instrument faithfully reproducing original performance without complicated tuning and music data generating system incorporated therein | Shigeru Muramatsu, Yasuhiko Oba, Kiyoshi Kawamura | 2002-06-11 |
| 6084167 | Keyboard instrument with touch responsive display unit | Teruo Akimoto, Kiyoshi Kawamura, Taro Kawabata, Yasuhiko Ohba, Masaaki Suzuki +2 more | 2000-07-04 |
| 5334977 | ADPCM transcoder wherein different bit numbers are used in code conversion | — | 1994-08-02 |
| 5323449 | Apparatus for communication by telephone set and facsimile set through order wires | Masahiko Mori | 1994-06-21 |