Inventor
KAWAHARA HISASHI
JP12 patents
⚠️ This page may combine multiple inventors who share the name “KAWAHARA HISASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CITIZEN WATCH CO LTD
7 patentsUS6816439B1Nov 9, 2004
Rechargeable electronic watch and driving method of rechargeable electronic watch
CITIZEN WATCH CO LTD37 citations92
US5886953AMar 23, 1999
Heavy-load drive apparatus for an electronic watch
CITIZEN WATCH CO LTD17 citations83
US4611923ASep 16, 1986
Electronic timepiece with a depth gauge
CITIZEN WATCH CO LTD9 citations72
US4328572AMay 4, 1982
Voltage control system for electronic timepiece
CITIZEN WATCH CO LTD12 citations72
US4505594AMar 19, 1985
Multi-function analogue type watch
CITIZEN WATCH CO LTD4 citations62
US4367958AJan 11, 1983
Correction signal generating system for an electronic timepiece
CITIZEN WATCH CO LTD5 citations61
US4397564AAug 9, 1983
Electronic timepiece
CITIZEN WATCH CO LTD1 citations50
SHARP KK
3 patentsUS10225424B2Mar 5, 2019
Image forming apparatus, method and control program for presence detection
SHARP KK2 citations71
US10484562B2Nov 19, 2019
Image forming apparatus, control program, and method for controlling luminance of the image forming apparatus
SHARP KK0 citations50
US8976401B2Mar 10, 2015
Image forming apparatus that displays a preview of a display image showing a state where an image is formed on a sheet of paper
SHARP KK1 citations50