Inventor
KIHARA HIROYUKI
JP19 patents
⚠️ This page may combine multiple inventors who share the name “KIHARA HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CITIZEN WATCH CO LTD
10 patentsUS5224059AJun 29, 1993
Device for measuring altitude and barometric pressure
CITIZEN WATCH CO LTD204 citations98
US5743269AApr 28, 1998
Cardiotachometer
CITIZEN WATCH CO LTD106 citations96
US4668100AMay 26, 1987
Electronic equipment with geomagnetic direction sensor
CITIZEN WATCH CO LTD68 citations95
US6542440B1Apr 1, 2003
Power-saving electronic watch and method for operating electronic watch
CITIZEN WATCH CO LTD13 citations84
US5973469AOct 26, 1999
Motor driving apparatus
CITIZEN WATCH CO LTD18 citations83
US6298014B1Oct 2, 2001
Time information management system
CITIZEN WATCH CO LTD10 citations73
US5519671AMay 21, 1996
Electronic equipment with depth measuring function
CITIZEN WATCH CO LTD11 citations73
US4597673AJul 1, 1986
Analogue type timer
CITIZEN WATCH CO LTD8 citations73
US4879669ANov 7, 1989
Sensor signal processor
CITIZEN WATCH CO LTD13 citations72
US4505594AMar 19, 1985
Multi-function analogue type watch
CITIZEN WATCH CO LTD4 citations62
SEIKO SEIKI KK
5 patentsUS5133158AJul 28, 1992
Control system of grinding machine
SEIKO SEIKI KK21 citations82
US5024025AJun 18, 1991
Control system of grinding machine
SEIKO SEIKI KK17 citations74
US5018071AMay 21, 1991
Method and apparatus for controlling a grinder having a spindle with deflection sensor
SEIKO SEIKI KK9 citations74
US5788432AAug 4, 1998
Method and apparatus for computing allowable spindle rotation speed
SEIKO SEIKI KK9 citations73
US4845895AJul 11, 1989
Internal grinding machine
SEIKO SEIKI KK10 citations66