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 patentsUS4983916AJan 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 patentsUS4944028AJul 24, 1990
Non-contact type pattern sensor with variable clearance compensation
NIPPON MUSICAL INSTRUMENTS MFG42 citations92
US4806860AFeb 21, 1989
Overlapped magnetoresistive displacement detecting transducers having closely spaced longitudinal centers
NIPPON MUSICAL INSTRUMENTS MFG8 citations74
US4782329ANov 1, 1988
Displacement detector for an encoder
NIPPON MUSICAL INSTRUMENTS MFG20 citations74
US4811254AMar 7, 1989
Displacement detector for an encoder
NIPPON MUSICAL INSTRUMENTS MFG9 citations70
US4768119AAug 30, 1988
Non-contact head with variable clearance compensating means
NIPPON MUSICAL INSTRUMENTS MFG4 citations62
US4683013AJul 28, 1987
Method for producing a shadow mask for a color cathode ray tube
NIPPON MUSICAL INSTRUMENTS MFG1 citations52