Inventor

Yoshiharu Chikazawa

Inventor

Yokohama, JP

Overview

14→

Patents

1995–2010

Patent span

Physics

Primary field (CPC G)

Patents· 14 as inventor

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

H04Nprimary

H04NPictorial communication, e.g. television29%

G02BOptical elements, systems or apparatus19%

G11BInformation storage based on relative movement between record carrier and transducer19%

H01JElectric discharge tubes or discharge lamps14%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein5%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them5%

G03CPhotosensitive materials for photographic purposes5%

G09GArrangements or circuits for control of indicating devices using static means to present variable information5%

PatentTitleYear

7,859,741'Variable iris using charged opaque particles'2010 7,330,636'Portable video recorder system'2008 7,061,678'Stereoscopic display device with two back light sources'2006 6,400,082'AC plasma display panel having electrode sets including transparent protrusions'2002 6,052,166'LCD projector comprising light sensor and correction circuit'2000 6,038,071'Apparatus for recording a stereoscopic image'2000 5,932,967'Plasma display panel'1999 5,900,972'Stereoscopic display system'1999 5,896,225'Device for stereoscopic image observation within an increased observation area'1999 5,852,512'Private stereoscopic display using lenticular lens sheet'1998 5,822,292'Multi beam track system and method for an optical memory'1998 5,764,614'Laser intensity gain control for detecting oscillation in the feedback circuit'1998 5,715,232'Recording and reproduction of items of information using ROM-RAM storage media'1998 5,416,764'Noise component reduction in the data signal and optical scanning device'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2000Patents assigned to THOMSON BRANDT GMBH (4)· patent assignee history

1995–1998Based in Tokyo, JP· patent location history

1998–2000Patents assigned to THOMSON MULTIMEDIA SA (6)· patent assignee history

1998–2010Based in Yokohama, JP· patent location history

1998–2000Based in Yokohama-shi, Kanagawa, JP· patent location history

2002Patents assigned to THOMSON LICENSING SA (1)· patent assignee history

2006–2010Patents assigned to THOMSON LICENSING (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
THOMSON MULTIMEDIA SA	6	1998–2000
THOMSON BRANDT GMBH	4	1995–2000
THOMSON LICENSING	3	2006–2010
THOMSON LICENSING SA	1	2002

Locations

Location	Patents	Span
Yokohama, JP	8	1998–2010
Yokohama-shi, Kanagawa, JP	4	1998–2000
Tokyo, JP	2	1995–1998