Inventor

NAKAJIMA HIROCHIKA

JP5 patents

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

FUJITSU LTD

4 patents

US4637027AJan 13, 1987

Laser light source device

FUJITSU LTD32 citations92

US4806442AFeb 21, 1989

Spatial phase modulating masks and production processes thereof, and processes for the formation of phase-shifted diffraction gratings

FUJITSU LTD49 citations91

US4730884AMar 15, 1988

Bipolar voltage controlled optical switch using intersecting waveguides

FUJITSU LTD14 citations72

US5080486AJan 14, 1992

Spectrum measuring equipment utilizing double-image polarizing element

FUJITSU LTD18 citations68

BROTHER IND LTD

1 patent

US6236786B1May 22, 2001

Substrate with optical waveguide and method of making the same

BROTHER IND LTD72 citations91