Inventor

Tetsuo Ueyama

Inventor

Nara, JP

Overview

24→

Patents

1992–2011

Patent span

Physics

Primary field (CPC G)

Patents· 24 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 transducer72%

G02BOptical elements, systems or apparatus10%

LOC1510%

G01BMeasuring length, thickness or similar linear dimensions3%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein3%

PatentTitleYear

7,990,834'Optical pickup device recording and/or reproducing information on and/or from a plurality of kinds of recording media'2011 7,684,306'Optical pickup apparatus'2010 7,649,825'Splitting element, light emitter, and optical pickup apparatus'2010 7,573,801'Optical pickup'2009 7,483,360'Optical pickup device using polarizing hologram element and hologram laser therefor'2009 7,397,752'Pickup for magneto-optical recording medium'2008 7,369,479'Optical miniaturized module, optical pickup device, and optical disk device provided with light source and photodetector'2008 7,315,502'Light integration unit, optical pickup device using the unit, and optical disk device'2008 7,218,599'Optical pickup'2007 7,184,384'Optical pickup'2007 7,106,682'Optical pickup'2006 7,019,280'Apparatus for detecting the tilt of a light reflector relative to the optical axis of input light'2006 6,868,055'Optical pickup'2005 6,487,015'Diffraction grating having multiple gratings with different cycles for generating multiple beams and optical pickup using such diffraction grating'2002 6,392,965'Optical pickup device'2002 D0416027'Sewing machine'1999 5,881,035'Optical pickup device, optical disk recording/reproducing apparatus, and method of generating focus error signal'1999 D0392652'Sewing machine'1998 D0383764'Sewing machine'1997 5,483,508'Optical recording and reproducing apparatus using a hologram to detect and judge a plurality of pit patterns'1996 5,331,621'Optical pickup apparatus and a hologram element used for same'1994 5,267,089'Inclination adjusting device for an objective lens for an optical information recording and reproduction apparatus'1993 5,189,655'Optical head for optical disk recording/reproducing apparatus including modified Wollaston prism'1993 5,085,496'Optical element and optical pickup device comprising it'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2011Patents assigned to SHARP KK (21)· patent assignee history

1992–2011Based in Nara, JP· patent location history

1996–1999Based in Yamatokoriyama, JP· patent location history

1997–1999Patents assigned to JUKI KK (3)· patent assignee history

1997Based in Tokyo, JP· patent location history

1998–1999Based in Chofu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SHARP KK	21	1992–2011
JUKI KK	3	1997–1999

Locations

Location	Patents	Span
Nara, JP	19	1992–2011
Chofu, JP	2	1998–1999
Yamatokoriyama, JP	2	1996–1999
Tokyo, JP	1	1997