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Inventor

Toshitsugu Miyawaki

Inventor
Chonan, JP

Overview

5→
Patents
2002–2010
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.

G02Bprimary
G02BOptical elements, systems or apparatus56%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
7,663,713'Light guide plate for a display panel having arcuate grooves formed in the incident and upper surfaces'20106,985,131'Liquid crystal display device'20066,530,671'Liquid crystal display'20036,522,373'Liquid crystal display device, light guide plate, and method for producing light guide plate'20036,334,689'Liquid crystal display'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2003Patents assigned to HITACHI LTD (3)· patent assignee history
2002Patents assigned to HITACHI ELECTRONICS DEVICES CO (1)· patent assignee history
2002–2003Based in Suwa, JP· patent location history
2003–2006Patents assigned to HITACHI ELECTRONIC DEVICES CO (2)· patent assignee history
2003–2010Based in Chonan, JP· patent location history
2006Based in Mobara, JP· patent location history
2010Patents assigned to HITACHI DISPLAY DEVICES LTD (1)· patent assignee history
2010Patents assigned to HITACHI DISPLAYS LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD32002–2003
HITACHI ELECTRONIC DEVICES CO22003–2006
HITACHI DISPLAY DEVICES LTD12010
HITACHI DISPLAYS LTD12010
HITACHI ELECTRONICS DEVICES CO12002
Locations
LocationPatentsSpan
Chonan, JP22003–2010
Suwa, JP22002–2003
Mobara, JP12006