Inventor

SHIBATA YASUMASA

JP8 patents

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

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

2 patents

US5905255AMay 18, 1999

Objective lens driver

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD60 citations95

US5416640AMay 16, 1995

Objective actuator

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations51

IDEMITSU PETROCHEMICAL CO

2 patents

US5156860AOct 20, 1992

Apparatus for manufacturing an optical disk substrate by injection molding

IDEMITSU PETROCHEMICAL CO14 citations67

US5059461AOct 22, 1991

Optical disk substrate, optical information-storage medium, and process and apparatus for manufacturing the optical disk substrate

IDEMITSU PETROCHEMICAL CO4 citations56

YAMAZAKI MASAHIRO

1 patent

US8134839B2Mar 13, 2012

Junction structure of substrate and joining method thereof

YAMAZAKI MASAHIRO2 citations60

AMENITY RES INSTITUTE CO LTD

1 patent

US10068585B2Sep 4, 2018

Echo canceller device

AMENITY RES INSTITUTE CO LTD2 citations59

IDEMITSU KOSAN CO

1 patent

US7691314B2Apr 6, 2010

Method of injection compression molding

IDEMITSU KOSAN CO6 citations56

UEDA YASUO

1 patent

US8068388B2Nov 29, 2011

Optical pick up and optical disc device having optical shield for suppressing the influence of stray light through hologram element

UEDA YASUO0 citations40