Seo; Katsuhiro

Patent Applications and Registrations

Patent applications and USPTO patent grants for Seo; Katsuhiro.The latest application filed is for "substance preparation evaluation system".

Company Profile

1.25.20

Seo; Katsuhiro - Kanagawa JP
SEO; Katsuhiro - Brea CA
Seo; Katsuhiro - Sagamihara JP
Seo; Katsuhiro - Tokyo JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Substance preparation evaluation system Grant 11,263,433 - Mizutani , et al. March 1, 2	2022-03-01
Substance Preparation Evaluation System App 20200057880 - MIZUTANI; Takayuki ; et al.	2020-02-20
Microchip And Microchip-type Fine-particle Measuring Device App 20140370586 - Seo; Katsuhiro ; et al.	2014-12-18
Fine particle measurement device Grant 8,913,242 - Seo December 16, 2	2014-12-16
Fine Particle Measurement Device App 20130242302 - Seo; Katsuhiro	2013-09-19
Fine particle measuring device Grant 8,466,435 - Toishi , et al. June 18, 2	2013-06-18
Optical pickup and optical disc apparatus Grant 8,411,548 - Nemoto , et al. April 2, 2	2013-04-02
Minute particle analyzing device and method Grant 8,384,045 - Takasaki , et al. February 26, 2	2013-02-26
Optical pickup and optical disc apparatus Grant 8,289,826 - Nemoto , et al. October 16, 2	2012-10-16
Laser Irradiation Device And Microparticle Measuring Device App 20120243567 - Seo; Katsuhiro ; et al.	2012-09-27
Zoom lens, camera module and electronic apparatus Grant 8,169,713 - Seo , et al. May 1, 2	2012-05-01
Fine Particle Measuring Device App 20120018650 - Toishi; Mitsuru ; et al.	2012-01-26
Minute Particle Analyzing Device And Method App 20120001090 - Takasaki; Koji ; et al.	2012-01-05
Variable focal length lens, camera module, and electronic apparatus Grant 8,014,076 - Suzuki , et al. September 6, 2	2011-09-06
Optical integrated device, method for detecting light, optical pickup, and optical disc apparatus Grant 7,986,593 - Kobayashi , et al. July 26, 2	2011-07-26
Optical Pickup And Optical Disc Apparatus App 20110164488 - Nemoto; Kazuhiko ; et al.	2011-07-07
Optical Pickup And Optical Disc Apparatus App 20110044152 - Nemoto; Kazuhiko ; et al.	2011-02-24
Zoom Lens, Camera Module And Electronic Apparatus App 20110002043 - Seo; Katsuhiro ; et al.	2011-01-06
Variable Focal Length Lens, Camera Module, And Electronic Apparatus App 20100328782 - Suzuki; Akira ; et al.	2010-12-30
Optical pickup and optical disc apparatus Grant 7,859,953 - Seo December 28, 2	2010-12-28
Optical pickup and optical disc apparatus Grant 7,800,986 - Kobayashi , et al. September 21, 2	2010-09-21
Optical pickup, optical disc device, polarization adjustment plate, and optical device Grant 7,778,141 - Seo , et al. August 17, 2	2010-08-17
Optical Integrated Device, Method For Detecting Light, Optical Pickup, And Optical Disc Apparatus App 20100149956 - Kobayashi; Takashi ; et al.	2010-06-17
Optical pickup, optical recording and reproducing apparatus and tracking error signal detecting method Grant 7,684,305 - Okamoto , et al. March 23, 2	2010-03-23
Optical pickup and optical disc apparatus including the same Grant 7,492,676 - Okamoto , et al. February 17, 2	2009-02-17
Optical Pickup, Optical Disc Device, Polarization Adjustment Plate, And Optical Device App 20080151735 - Seo; Katsuhiro ; et al.	2008-06-26
Optical Pickup And Optical Disc Apparatus Including The Same App 20080089205 - OKAMOTO; Yoshiki ; et al.	2008-04-17
Optical pickup and optical disc device Grant 7,336,432 - Seo , et al. February 26, 2	2008-02-26
Optical Pickup And Optical Disc Apparatus App 20080008059 - SEO; Katsuhiro	2008-01-10
Optical disc device and optical pickup App 20070280085 - Seo; Katsuhiro ; et al.	2007-12-06
Optical Pickup And Optical Disc Apparatus App 20070206451 - Kobayashi; Takashi ; et al.	2007-09-06
Optical pickup, optical recording and reproducing apparatus and tracking error signal detecting method App 20070109930 - Okamoto; Yoshiki ; et al.	2007-05-17
Method and unit for separating light and optical pickup device and optical recording/playback apparatus based thereon App 20070036058 - Okamoto; Yoshiki ; et al.	2007-02-15
Optical pickup and optical disc device App 20060050413 - Seo; Katsuhiro ; et al.	2006-03-09
Optical pickup and optical disk apparatus App 20050276297 - Nishi, Noriaki ; et al.	2005-12-15
Optical pickup and method for manufacturing optical pickup Grant 6,246,644 - Seo June 12, 2	2001-06-12
Recording medium having track formed of land portion and groove portion, and reproducing apparatus therefor Grant 6,055,218 - Takeda , et al. April 25, 2	2000-04-25
Prism has a plurality of reflective regions each with a predetermined phase difference Grant 5,742,577 - Horimai , et al. April 21, 1	1998-04-21
Prism has a plurality of reflective regions each with a predetermined phase difference Grant 5,563,869 - Horimai , et al. October 8, 1	1996-10-08
Magneto-optical disc recording/reproducing apparatus Grant 5,428,583 - Ohmori , et al. * June 27, 1	1995-06-27
Improved disc cartridge and recording and/or reproducing apparatus having means for positioning a turntable and disc cartridge support structure and means for reducing vibrations Grant 5,416,762 - Ohmori , et al. May 16, 1	1995-05-16
Magneto-optical disc recording/reproducing apparatus Grant 5,329,503 - Ohmori , et al. July 12, 1	1994-07-12

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