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Inventor

Takashi Yamanouchi

Inventor
Tokyo, JP

Overview

3→
Patents
2002–2004
Patent span
Physics
Primary field (CPC G)

Patents· 3 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 transducer60%
G02BOptical elements, systems or apparatus40%
PatentTitleYear
6,807,018'Objective lens for optical pick-up'20046,785,215'Astigmatic objective lens for optical head'20046,473,387'Optical disc apparatus'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002Patents assigned to ASAHI OPTICAL CO LTD (1)· patent assignee history
2002–2004Based in Tokyo, JP· patent location history
2004Patents assigned to PENTAX CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PENTAX CORP22004
ASAHI OPTICAL CO LTD12002
Locations
LocationPatentsSpan
Tokyo, JP32002–2004