P

Inventor

FUJII YOSHIMASA

JP10 patents
⚠️ This page may combine multiple inventors who share the name “FUJII YOSHIMASA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI METALS LTD

3 patents
US9592550B2Mar 14, 2017

Method for producing castings

HITACHI METALS LTD1 citations51
US10471498B2Nov 12, 2019

Production method of castings and gas-permeable casting mold

HITACHI METALS LTD0 citations49
US10232431B2Mar 19, 2019

Production method of castings and gas-permeable casting mold

HITACHI METALS LTD0 citations49

HOUSE FOOD INDUSTRIAL CO

2 patents
US4803088AFeb 7, 1989

Container packed with instant food for use in microwave oven

HOUSE FOOD INDUSTRIAL CO90 citations94
US4483879ANov 20, 1984

Method of preparing dried noodles

HOUSE FOOD INDUSTRIAL CO19 citations79

SUMITOMO METAL MINING CO

2 patents
US4622663ANov 11, 1986

Optical wavelength demultiplexer

SUMITOMO METAL MINING CO27 citations92
US4684208AAug 4, 1987

Optical branching element

SUMITOMO METAL MINING CO9 citations73

CANADIAN PATENTS DEV

1 patent
US4474427AOct 2, 1984

Optical fiber reflective filter

CANADIAN PATENTS DEV85 citations95

HITACHI CABLE

1 patent
US4753497AJun 28, 1988

Directional coupler for coupling single-polarization optical fibers

HITACHI CABLE48 citations92

AGENCY IND SCIENCE TECHN

1 patent
US4603941AAug 5, 1986

Polarization-maintaining fiber system and method of manufacturing the same

AGENCY IND SCIENCE TECHN31 citations91