Inventor

Osamu Shimizu

Inventor

Kanagawa, JP

Overview

1976–2021

Patent span

Physics

Primary field (CPC G)

Patents· 113 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 transducer16%

Y10TTechnical subjects covered by former us classification9%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

G03GElectrography7%

H04NPictorial communication, e.g. television6%

B41JTypewriters4%

H01FMagnets4%

E03FSewers3%

G01CMeasuring distances, levels or bearings3%

G06FElectric digital data processing2%

PatentTitleYear

10,967,455Vehicular differential device and welding method for the same2021 10,527,153Vehicle differential device2020 10,346,855Reducing electric energy consumption based on energy usage pattern2019 10,115,425Magnetic recording medium for microwave assisted recording and magnetic recording device2018 10,008,233Recording medium changer and control method2018 9,983,515Rotation-information detecting device, rotation control device, and image forming apparatus2018 9,818,517'Hexagonal ferrite magnetic particles, magnetic recording powder, and magnetic recording medium'2017 9,747,161'Signal processing device, magnetic information playback device, and signal processing method'2017 9,718,273'Cleaning apparatus and liquid droplet ejection apparatus'2017 9,373,851'Fuel cell'2016 9,355,673'Recording medium delivery mechanism and recording medium changer'2016 8,983,354'Laser fixing device and image forming apparatus'2015 8,522,923'Fluid supply apparatus'2013 8,279,554'Magnetic recording medium and magnetic signal reproduction method'2012 8,164,857'Magnetic signal reproduction system employing a spin-valve MR head developed for high-density recording and a spin-valve MR head and magnetic signal reproduction method for reproducing magnetic signals in which a spin-valve MR head is employed'2012 8,028,715'Check valve for vacuum sewage pipe and vacuum sewage system'2011 7,949,232'Apparatus, method and control system for inputting a reproduction speed of a video signal'2011 7,885,508'Input apparatus, input method, input control program, reproduction apparatus, reproduction control method, and reproduction control program'2011 7,728,238'Data setter'2010 7,332,695'Carbon heating element and method of producing same'2008 7,326,085'IC card wrong insertion preventing mechanism and IC card connector having the same'2008 7,294,955'Electrode for electron gun and electron gun using same'2007 7,224,486'Image conversion method, image conversion apparatus, and image conversion program storage medium'2007 7,182,645'Card connector for an electronic device and a contact used therein'2007 7,152,618'Vacuum station and the method for operating the same'2006 7,013,909'Vacuum valve controller'2006 6,902,457'Electrode for electron gun and electron gun using same'2005 6,897,969'Image forming method'2005 D0502478'Combined monitor, video tape recorder and video camera'2005 6,778,298'Image forming apparatus'2004 6,775,492'Flash fixation apparatus with gas unit and printer using the same'2004 6,704,121'Image forming method and image forming apparatus'2004 6,673,312'Sterilizing method by far-infrared radiation'2004 6,627,116'Carbon-based heating unit and method for preparation thereof'2003 6,627,144'Carbonaceous heating element and process for producing the same'2003 6,404,510'Image printing method'2002 6,382,853'Method of preventing dust from adhering to ink ribbon of printer and printer'2002 6,374,059'Image reader incorporated in electro-developing type camera and electro-developing recording medium used therein'2002 D0454360'Video projector'2002 6,313,857'Method for correcting density irregularity and image recording apparatus using the method'2001 6,303,240'Soft magnetic thin film'2001 6,252,678'Image formation method'2001 6,238,492'Soft magnetic thin film, method for preparing same and magnetic head'2001 6,219,079'Thin-film thermal head incorporating conductive layer containing Cu-Ag alloy'2001 6,183,568'Method for preparing a magnetic thin film'2001 6,151,054'Thermal head and method of manufacturing the same, and heat-sensitive recording method'2000 6,120,198'Printing head drive apparatus and method for driving printing head'2000 D0429227'Television set'2000 D0428430'Video camera with LCD monitor'2000 6,036,209'System for managing safe mobile run by scanning lane'2000 6,011,935'Image formation system also serving as MICR printer'2000 5,940,646'Photographing operation control device'1999 5,913,633'Arrangement for joining outer ring and shaft of homokinetic joint'1999 5,913,077'Image reader incorporated in electro-developing type camera and electro-developing recording medium used therein'1999 5,905,547'Information recording medium and information recording apparatus'1999 5,903,296'Photoelectric sensor, information recording system and information recording and reproducing method'1999 5,884,109'Electro-developing type camera using electro-developing recording medium'1999 5,871,027'Vacuum valve controller'1999 5,842,792'Dot-matrix line printer'1998 5,788,578'Homokinetic joint having an outer ring formed with track grooves which have a constant effective depth'1998 5,778,260'Device for controlling developing operation of electro-developing type camera'1998 5,772,797'Soft magnetic thin film, method for preparing same and magnetic head'1998 5,764,051'Cold forged toothed ring for producing rotational speed signals'1998 5,750,238'Electrostatic information recording medium'1998 5,721,042'Electrostatic information recording medium'1998 5,717,626'Photoelectric sensor, information recording system, and information recording and reproducing method'1998 5,702,190'Dot-matrix line printer'1997 5,678,101'Holder assembly for electro-developing recording media and electro-developing type camera with such holder assembly'1997 5,646,927'Packaged photographic film with a plurality of liquid crystal recording regions'1997 5,629,920'Photoelectric sensor, information recording system, and information recording method'1997 5,614,329'Soft-magnetic thin film'1997 5,608,964'Method for producing a thin film magnetic head having an improved coil conductor layer'1997 5,588,458'Vacuum valve controller for vacuum sewer system'1996 5,575,454'Vacuum valve'1996 5,544,548'Cold forming method of toothed ring-shaped products and forming apparatus for its use'1996 5,537,158'Channel display device for receiver using a touch sensitive overlay'1996 5,527,589'Electrostatic information recording medium'1996 5,488,601'Photoelectric sensor, information recording system, and information recording method'1996 5,430,583'Magnetic recording and/or reproducing apparatus'1995 5,421,915'Method for preparing same and magnetic head'1995 5,369,539'Thin film magnetic head having improved coil conductor layer'1994 5,351,111'Corona discharge device'1994 5,311,382'Pinch roller urging device for video information recording/reading apparatus'1994 5,293,283'Tape guiding assembly for recording and/or reproducing apparatus employing ultrasonically vibrated tape guides'1994 5,227,940'Composite magnetic head'1993 5,210,067'Heat transfer-receiving sheets'1993 5,159,514'Film magnetic head having a corrosion prevention layer provided over an electrode pad'1992 5,130,878'Thin film magnetic head comprising a protective layer'1992 5,119,301'Vehicle location detecting system'1992 5,117,321'Soft magnetic thin film, method for preparing same and magnetic head'1992 5,114,800'Soft magnetic thin film'1992 5,115,238'Calibration apparatus of angular velocity sensor in self-contained navigational system'1992 D0325575'Television set'1992 5,089,826'Navigation system for movable body'1992 D0323651'Television set'1992 D0321527'Projector'1991 5,061,576'Thin film magnetic head'1991 4,999,783'Location detecting method'1991 4,983,465'Thin film magnetic head'1991 D0311531'Television set'1990 D0308373'Television set'1990 D0307896'Television set'1990 4,862,398'Correcting method and correcting errors in a terrestrial magnetism heading sensor'1989 4,833,519'Semiconductor device with a wiring layer having good step coverage for contact holes'1989 4,807,127'Vehicle location detecting system'1989 4,688,194'Multi-range controller'1987 4,620,245'Tape loading apparatus for use in a recording and/or reproducing apparatus of the rotating head kind'1986 4,556,876'Display device with delay time compensation'1985 4,136,333'Terminal signal operation apparatus'1979 4,071,889'Central processing apparatus for generating and receiving time division multiplex signals'1978 3,968,477'Control apparatus for electrical devices'1976 3,965,366'Electrical devices control system'1976 3,950,656'State detecting apparatus'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1996Patents assigned to MITSUBISHI ELECTRIC CORP (7)· patent assignee history

1986–2019Patents assigned to SONY CORP (9)· patent assignee history

1986–2019Based in Kanagawa, JP· patent location history

1987–2011Based in Tokyo, JP· patent location history

1989–2000Based in Osaka, JP· patent location history

1990–2005Patents assigned to SHARP KK (10)· patent assignee history

1991–2005Patents assigned to FUJI PHOTO FILM CO LTD (25)· patent assignee history

1992–2018Based in Minami-ashigara, JP· patent location history

1993–2002Patents assigned to DAINIPPON PRINTING CO LTD (16)· patent assignee history

2000–2005Based in Shizuoka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FUJI PHOTO FILM CO LTD	25	1991–2005
DAINIPPON PRINTING CO LTD	16	1993–2002
SHARP KK	10	1990–2005
SONY CORP	9	1986–2019
MITSUBISHI ELECTRIC CORP	7	1976–1996

Locations

Location	Patents	Span
Kanagawa, JP	25	1986–2019
Tokyo, JP	25	1987–2011
Osaka, JP	12	1989–2000
Minami-ashigara, JP	11	1992–2018
Shizuoka, JP	10	2000–2005