Inventor

Michiaki Sato

Inventor

Ichinomiya, JP

Overview

5→

Patents

1992–2001

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 apparatus25%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein17%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%

B41JTypewriters8%

F21SNon-portable lighting devices8%

F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted8%

G03GElectrography8%

G11BInformation storage based on relative movement between record carrier and transducer8%

PatentTitleYear

6,273,577'Light guide plate, surface light source using the light guide plate, and liquid crystal display using the surface light source'2001 6,250,767'Light guide plate, surface light source and display using the same'2001 5,999,685'Light guide plate and surface light source using the light guide plate'1999 5,138,387'Charge injection image forming apparatus using conductive and insulative tone'1992 5,093,821'Optical pickup apparatus using plural laser sources of different wavelengths'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2001Patents assigned to SANYO ELECTRIC CO (4)· patent assignee history

1992Patents assigned to SHARP KK (1)· patent assignee history

1992Based in Aichi, JP· patent location history

1992Based in Higashihiroshima, JP· patent location history

1999–2001Based in Ichinomiya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SANYO ELECTRIC CO	4	1992–2001
SHARP KK	1	1992

Locations

Location	Patents	Span
Ichinomiya, JP	3	1999–2001
Aichi, JP	1	1992
Higashihiroshima, JP	1	1992