Inventor

KATO TADAHARU

JP28 patents

⚠️ This page may combine multiple inventors who share the name “KATO TADAHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KATO TADAHARU

YAMAHA CORP

Keyboard instrument with touch responsive display unit

Optical transducer system for monitoring movable parts, optical modulator and musical instrument using the same

Optical transducer having optical modulator in the vicinity of rotational axis of moving object and musical instrument using the same

Easily installable optical position transducer and keyboard musical instrument having the same

Keyboard musical instrument for exactly producing tones and hammer sensor varying output signal exactly representing physical quantity of hammer

Automatic player incorporated in keyboard musical instrument and plunger sensor for detecting motion of plunger

Keyboard musical instrument faithfully reproducing original performance without complicated tuning and music data generating system incorporated therein

Optical transducer having optical fibers resiliently warped near optical devices and musical instrument using the same

Optical transducer having optical fiber plug transparent to curing light and non-transparent to sensing light

Keyboard musical instrument having easily installable optical position transducer with coupler for coupling optical modulator to moving object

Keyboard musical instrument for exactly producing tones and hammer sensor varying output signal exactly representing physical quantity of hammer

Shutter, optical sensor system using the same and shutter holder incorporated therein

Electromagnetic device equipped with solenoid, automatic player using the same and automatic player keyboard musical instrument

Multicore optical fiber connector for enhancing uniformity of amount of incident light and optical sensor array using the same

Unbreakable and economical optical sensor array and keyboard musical instrument using the same

Optical sensor heads exhibiting regularity in optical characteristics and optical sensor system using the same

Musical instrument system capable of locating missing remote controller, musical instrument, remote controller and method use therein

Light emitting unit operative at high coupling efficiency, optical sensor system and musical instrument using the same

Performance operator control apparatus

Musical instrument and acoustic transducer device

Keyboard musical instrument having sensor unit exactly located by means of plural locators

Keyboard musical instrument

Installation structure for acoustic transducer

NEC CORP

Speech signal detector having adaptive threshold values

ADPCM transcoder wherein different bit numbers are used in code conversion

Apparatus for communication by telephone set and facsimile set through order wires

Adaptive differential pulse code modulation decoding circuit

NIPPON ELECTRIC CO

Digital pushbutton signalling receiver