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Inventor

Tomoyoshi Ikeya

Inventor
Yamanashi, JP

Overview

10→
Patents
1986–2006
Patent span
Physics
Primary field (CPC G)

Patents· 10 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 transducer42%
H01JElectric discharge tubes or discharge lamps25%
G02BOptical elements, systems or apparatus17%
G01BMeasuring length, thickness or similar linear dimensions8%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light8%
PatentTitleYear
7,140,939'Method of manufacturing display panel'20067,029,357'Display panel and method of producing the same'20066,873,389'Flat display panels and having a ventilation duct secured to a back substrate via a sealing member, and methods of manufacturing the same'20056,052,340'Turntable for optical recording disc recording apparatus'20005,859,730'Optical apparatus having a luminous flux shaping filter'19995,742,567'Master optical disk recording apparatus'19985,572,500'Optical filter with light transmittance dependency on incident angle'19965,109,376'Optical axis monitoring device'19924,917,489'Device for measuring size of light spot'19904,627,725'Optical axis monitoring system'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2000Patents assigned to PIONEER ELECTRONIC CORP (7)· patent assignee history
1986–2006Based in Yamanashi, JP· patent location history
1990–2000Patents assigned to PIONEER VIDEO CORP (6)· patent assignee history
1999–2000Based in Nakakoma-gun, JP· patent location history
2005–2006Patents assigned to PIONEER CORP (2)· patent assignee history
2005–2006Patents assigned to PIONEER DISPLAY PROD CORP (2)· patent assignee history
2005–2006Based in Shizuoka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PIONEER ELECTRONIC CORP71986–2000
PIONEER VIDEO CORP61990–2000
PIONEER CORP22005–2006
PIONEER DISPLAY PROD CORP22005–2006
Locations
LocationPatentsSpan
Yamanashi, JP61986–2006
Shizuoka, JP22005–2006
Nakakoma-gun, JP21999–2000