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Inventor

Toyokazu Takahashi

Inventor
Tokyo, JP

Overview

5→
Patents
2004–2021
Patent span
Physics
Primary field (CPC G)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer57%
G02BOptical elements, systems or apparatus29%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof14%
PatentTitleYear
10,890,147Flow control device20218,125,876'Objective lens, optical pickup apparatus using the same, optical recording/reproduction apparatus using the same, and method of correcting aberration using the same'20127,826,328'Optical pickup device and optical disk apparatus using the same'20107,050,379'Optical pickup-use object lens, optical pickup and optical disk unit'20066,819,491'Objective lens unit for optical pickup, optical pickup and disc driving device'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2012Patents assigned to SONY CORP (4)· patent assignee history
2004–2006Based in Kanagawa, JP· patent location history
2010–2012Based in Tokyo, JP· patent location history
2012Patents assigned to AIBA MOTOO (1)· patent assignee history
2012Patents assigned to ANJU KOUHEI (1)· patent assignee history
2012Patents assigned to OGAWA KENICHI (1)· patent assignee history
2021Patents assigned to HITACHI AUTOMOTIVE SYSTEMS LTD (1)· patent assignee history
2021Based in Hitachinaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP42004–2012
AIBA MOTOO12012
ANJU KOUHEI12012
HITACHI AUTOMOTIVE SYSTEMS LTD12021
OGAWA KENICHI12012
Locations
LocationPatentsSpan
Tokyo, JP22010–2012
Kanagawa, JP22004–2006
Hitachinaka, JP12021