P

Inventor

HIROI MASAKI

JP7 patents
⚠️ This page may combine multiple inventors who share the name “HIROI MASAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RICOH KK

3 patents
US5848329ADec 8, 1998

Image forming apparatus having a mounting/dismounting mechanism

RICOH KK83 citations95
US5153750AOct 6, 1992

Image reading apparatus having a contact type image sensor device

RICOH KK21 citations81
US5015837AMay 14, 1991

Contact type image sensor with electric shielding

RICOH KK6 citations57

HIROI MASAKI

2 patents
US10914451B2Feb 9, 2021

Optical unit and optical apparatus

HIROI MASAKI0 citations43
US9627845B2Apr 18, 2017

Method for manufacturing an optical unit

HIROI MASAKI0 citations34

HAGITA KENTAROH

1 patent
US10559942B2Feb 11, 2020

Laser device and internal combustion engine

HAGITA KENTAROH2 citations68

YAMAGUCHI TAKAYUKI

1 patent
US8421838B2Apr 16, 2013

Optical device, optical scanning device, image forming apparatus, and manufacturing method of optical device

YAMAGUCHI TAKAYUKI4 citations60