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Inventor

Yoshifumi Tsunekawa

Inventor
Chino, JP

Overview

6→
Patents
1989–2021
Patent span
Physics
Primary field (CPC G)

Patents· 6 as inventor

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

G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein57%
G02BOptical elements, systems or apparatus14%
G06FElectric digital data processing14%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light14%
PatentTitleYear
11,061,248Noncontact operation detecting device20217,268,843'Liquid crystal display with capacitive light shield between data line and pixel electrode'20077,253,795'Electro-optical device and electronic apparatus'20077,161,193'Electro-optical device and electronic apparatus'20076,835,955'Electro-optical device and electronic apparatus'20044,856,013'Semiconductor laser having an active layer and cladding layer'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2007Patents assigned to SEIKO EPSON CORP (5)· patent assignee history
1989Based in Suwa, JP· patent location history
2004–2007Based in Chino, JP· patent location history
2021Patents assigned to TOYODA GOSEI KK (1)· patent assignee history
2021Patents assigned to UNIV UTSUNOMIYA (1)· patent assignee history
2021Based in Kiyosu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEIKO EPSON CORP51989–2007
TOYODA GOSEI KK12021
UNIV UTSUNOMIYA12021
Locations
LocationPatentsSpan
Chino, JP42004–2007
Kiyosu, JP12021
Suwa, JP11989