P

Inventor

IIJIMA KENZABUROU

JP26 patents
⚠️ This page may combine multiple inventors who share the name “IIJIMA KENZABUROU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

YAMAHA CORP

19 patents
US4983916AJan 8, 1991

Compact magnetic encoder

YAMAHA CORP72 citations96
US5946597AAug 31, 1999

Semiconductor chip mounting method

YAMAHA CORP22 citations92
US5241140AAug 31, 1993

Speaker diaphragm

YAMAHA CORP29 citations92
US5012238AApr 30, 1991

Absolute encoder

YAMAHA CORP26 citations92
US4855740AAug 8, 1989

Keyboard

YAMAHA CORP46 citations89
US5481355AJan 2, 1996

Flying spherical body measuring apparatus

YAMAHA CORP45 citations88
US5131986AJul 21, 1992

Golf club head and its manufacturing

YAMAHA CORP37 citations88
US7026712B2Apr 11, 2006

Peltier module with durable power supply lines and exothermic module with built-in cooler

YAMAHA CORP16 citations84
US6917638B2Jul 12, 2005

Heat radiator for electronic device and method of making it

YAMAHA CORP15 citations84
US4987040AJan 22, 1991

Magnetic recording medium for displacement detectors

YAMAHA CORP8 citations74
US4954803ASep 4, 1990

Magnetic-resistor sensor and a magnetic encoder using such a sensor

YAMAHA CORP10 citations74
US4847879AJul 11, 1989

Frequency sensing and control circuit

YAMAHA CORP8 citations74
US4894097AJan 16, 1990

Rare earth type magnet and a method for producing the same

YAMAHA CORP9 citations73
US4851752AJul 25, 1989

Magnetic encoder and a method for producing the same

YAMAHA CORP12 citations73
US5037800AAug 6, 1991

Method of drawing glass encased superconductive oxide core

YAMAHA CORP6 citations63
US4987414AJan 22, 1991

Signal processing circuit for an encoder

YAMAHA CORP6 citations63
US4879674ANov 7, 1989

Input circuit for a digital phase locked loop

YAMAHA CORP4 citations63
US4908076AMar 13, 1990

FE-B magnets containing Nd-Pr-Ce rare earth elements

YAMAHA CORP4 citations62
US5007057AApr 9, 1991

Power source monitor and a rotary encoder with such a monitor

YAMAHA CORP1 citations52

NIPPON MUSICAL INSTRUMENTS MFG

6 patents

RICHSTONE LTD

1 patent