Inventor

YAMAGUCHI TSUTOMU

JP73 patents

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

YAMAGUCHI TSUTOMU

SANYO ELECTRIC CO

Switching circuit device and semiconductor device

Nitride-based semiconductor light-emitting device

Nitride-based semiconductor device and method of fabricating the same

Nitride-based semiconductor element and method of forming nitride-based semiconductor

Nitride-based semiconductor laser device and method of forming the same

Semiconductor device

Method of forming a nitride-based semiconductor

Nitride-based semiconductor element

Nitride-based semiconductor light-emitting device and method of forming the same

Nitride-based semiconductor element

Electronic digital pressure switch

Nitride-based semiconductor device and method of fabricating the same

Method of designing a high-frequency circuit

Semiconductor laser apparatus and fabrication method thereof

Semiconductor laser device and method of fabricating the same

Nitride-based semiconductor light-emitting device

Manufacturing method of nitride semiconductor device and nitride semiconductor device

Semiconductor device and method of fabricating the same

Integrated semiconductor laser device and method of fabricating the same

KAWAI MUSICAL INSTR MFG CO

Mechanism for rotatably supporting rotary member of keyboard

Keyboard apparatus for electronic musical instrument having cooperating jacks and hammers

Keyboard apparatus for electronic keyboard musical instrument

Keyboard device for electronic musical instrument

Stopper for keyboard-based musical instruments

Keyboard device for keyboard instrument

Operation detection switch, musical instrument and parameter determination program

Key for keyboard-based musical instruments

Key support device

Abutment device for a key switch arrangement operable with both hammer-equipped and hammerless keyboards for electronic musical instruments

Key device for electronic keyboard musical instrument

Keyboard device for keyboard musical instrument

Action mechanism for a keyboard of an electronic piano

HITACHI LTD

Base station controller and mobile station

Radio communication method and radio communication system

Radio receiver with amplitude limiter prior to mixer and band limiting filter

KK KAWAI GAKKI SEISAKUSHO

Keyboard device for keyboard instrument

Keyboard device for keyboard instrument

Key for keyboard device

TOYO JOZO KK

Assaying lipid peroxide in lipid compositions

Process for the production of 7-amino-cephem compounds

SOMAR CORP

Penetrable, epoxy resin composition comprising glycidyl ether of bisphenol modified with glycol or urethane, and inorganic filler

Penetrable, epoxy resin composition comprising glycidyl ether of bisphenol modified with glycol or urethane, and inorganic filler

MITSUBISHI ELECTRIC CORP

Semiconductor device and method for producing the same

Monolithic semiconductor laser and method of manufacturing the same

HITACHI MAXELL

Detection mark and method and apparatus for detecting mark

CASIO HITACHI MOBILE COMM CO

Waterproof structure

TOKYO ELECTRIC CO LTD

Ink jet printer with device for aligning an ink cartridge

SHINKO ELECTRIC CO LTD

Method of making thermal transfer type multicolor printing

DENKI KAGAKU KOGYO KK

Rubber molded product

HITACHI METALS LTD

Free access floor