Inventor

YAMAMURA KATSUMI

JP5 patents

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

SUWA SEIKOSHA KK

2 patents

US4024676AMay 24, 1977

Electronic timepiece

SUWA SEIKOSHA KK5 citations59

US3963906AJun 15, 1976

Compact electronic calculator

SUWA SEIKOSHA KK5 citations56

SEIKO EPSON CORP

1 patent

US5302921AApr 12, 1994

Piezoelectric oscillator having reduced radiation of higher harmonics

SEIKO EPSON CORP24 citations88

MATSUSHITA GRAPHIC COMMUNIC

1 patent

US5317417AMay 31, 1994

Image processing apparatus with improved image reduction

MATSUSHITA GRAPHIC COMMUNIC18 citations71

HONSHU PAPER CO LTD

1 patent

US4943552AJul 24, 1990

Process for preparing a gas absorbent

HONSHU PAPER CO LTD12 citations67