Inventor
OBARA HIROSHI
24 patents
⚠️ This page may combine multiple inventors who share the name “OBARA HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KUREHA CHEMICAL IND CO LTD
10 patentsUS3935485AJan 27, 1976
Piezoelectric key board switch
KUREHA CHEMICAL IND CO LTD123 citations95
US4406967ASep 27, 1983
Ultrasonic probe
KUREHA CHEMICAL IND CO LTD26 citations82
US3969927AJul 20, 1976
Vibration measuring and the apparatus therefor
KUREHA CHEMICAL IND CO LTD25 citations82
US4258260AMar 24, 1981
Pyroelectric infrared detector
KUREHA CHEMICAL IND CO LTD24 citations80
US4258259AMar 24, 1981
Infrared detector
KUREHA CHEMICAL IND CO LTD19 citations79
US4467202AAug 21, 1984
Photoelectric detector
KUREHA CHEMICAL IND CO LTD8 citations74
US4071785AJan 31, 1978
Laminated piezoelectric matrix switch
KUREHA CHEMICAL IND CO LTD17 citations74
US4543293ASep 24, 1985
Polarized, shaped material of copolymer of vinylidene fluoride
KUREHA CHEMICAL IND CO LTD14 citations73
US4412147AOct 25, 1983
Ultrasonic holography imaging device having a macromolecular piezoelectric element transducer
KUREHA CHEMICAL IND CO LTD15 citations71
US3984903AOct 12, 1976
Method of spanning across a frame a high-molecular-weight piezoelectric element
KUREHA CHEMICAL IND CO LTD4 citations63
RICOH KK
5 patentsUS6057936AMay 2, 2000
Image forming apparatus having internal space for sheet ejection and retention
RICOH KK62 citations96
US7552998B2Jun 30, 2009
Method and apparatus for image forming capable of increasing maintenance efficiency
RICOH KK20 citations92
USD478618SAug 19, 2003
Printer for a computer
RICOH KK33 citations92
USD447766SSep 11, 2001
Portable printer
RICOH KK30 citations89
USD510090SSep 27, 2005
Bar code reader
RICOH KK7 citations74