Inventor

FUJIWARA YOSHITAKA

JP6 patents

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

TAKEDA CHEMICAL INDUSTRIES LTD

2 patents

US4767870AAug 30, 1988

Method of purifying L-ascorbic acid

TAKEDA CHEMICAL INDUSTRIES LTD24 citations77

US4778902AOct 18, 1988

Method of purifying L-ascorbic acid

TAKEDA CHEMICAL INDUSTRIES LTD8 citations70

FUJI ELECTRIC CO LTD

1 patent

US5055990AOct 8, 1991

Snubber circuit for power conversion semiconductor elements and assembly thereof

FUJI ELECTRIC CO LTD47 citations91

TOKAI RIKA CO LTD

1 patent

US4402194ASep 6, 1983

Ice making apparatus to be incorporated in refrigerators

TOKAI RIKA CO LTD51 citations90

HITACHI LTD

1 patent

US6931215B1Aug 16, 2005

Optical transmitter module

HITACHI LTD18 citations83

ROLAND CORP

1 patent

US11735150B2Aug 22, 2023

Keyboard device

ROLAND CORP0 citations60