Inventor
Masatoshi Sakurai
Inventor
Tokyo, JP
Overview
Patents· 117 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 transducer33%
B82YSpecific uses or applications of nanostructures19%
Y10TTechnical subjects covered by former us classification8%
C23CCoating metallic material4%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds2%
C23FNon-mechanical removal of metallic material from surface2%
H01JElectric discharge tubes or discharge lamps2%
H10KOrganic electric solid-state devices2%
PatentTitleYear
10,675,690Hard coating and hard coating-covered member202010,676,810Hard coating and hard coating-covered member202010,502,108Exhaust gas purification system for construction machine201910,227,687Hard lubricating coating film and hard lubricating coating film-covered tool20199,551,062'Hard film for machining tools and hard film-coated metal machining tool'20179,488,541'Pressure sensor, microphone, and acoustic processing system'20169,409,238'Hard coating for cutting tool, and cutting tool coated with hard coating'20169,109,280'Hard laminar coating'20159,012,046'Magnetic recording medium, method of manufacturing the same, and magnetic recording/reproduction apparatus'20158,989,525'Light deflecting element'20158,842,392'Magnetic recording medium and magnetic recording apparatus'20148,829,070'Ultraviolet-curable resin material for pattern transfer and magnetic recording medium manufacturing method using the same'20148,815,336'Magnetic recording medium manufacturing method'20148,786,971'Magnetic recording apparatus having variable-width tracks and method of testing same'20148,778,162'Stamper and method of manufacturing the same'20148,748,017'Magnetic recording medium'20148,703,621'Manufacturing method of magnetic recording medium'20148,681,454'Patterned medium and method of manufacturing the same'20148,643,970'Magnetic recording apparatus and recording method of magnetic recording apparatus'20148,551,685'Ultraviolet-curing resin material for pattern transfer and magnetic recording medium manufacturing method using the same'20138,551,348'Magnetic recording medium and method of manufacturing the same'20138,533,570'Magnetic recording apparatus'20138,507,116'Magnetic recording medium and manufacturing method thereof'20138,475,949'Method for manufacturing magnetic recording medium and magnetic recording medium'20138,454,869'Stamper and stamper evaluation method'20138,440,091'Magnetic recording medium and method of manufacturing the same'20138,419,952'Method of manufacturing magnetic recording medium and magnetic recording apparatus'20138,372,253'Perpendicular magnetic recording medium, method of manufacturing the same, and magnetic read/write apparatus'20138,372,575'Ultraviolet-curing resin material for pattern transfer and magnetic recording medium manufacturing method using the same'20138,349,163'Perpendicular magnetic recording medium, method of manufacturing the same, and magnetic read/write apparatus'20138,343,362'Stamper manufacturing method'20138,333,899'Method of manufacturing magnetic recording medium'20128,318,331'Magnetic recording medium, method for manufacturing the same, and magnetic recording apparatus'20128,308,965'Stamper, method of manufacturing the stamper, and magnetic recording medium manufacturing method using the stamper'20128,300,341'Magnetic recording device, magnetic recording method, and magnetic storage medium'20128,300,340'Magnetic recording medium'20128,293,387'Magnetic recording medium and method of manufacturing the same'20128,289,645'Magnetic disk apparatus'20128,257,560'Patterned media and method of manufacturing the same, and magnetic recording apparatus'20128,221,637'Method and apparatus for manufacturing magnetic recording media'20128,206,602'Method of manufacturing magnetic recording medium'20128,173,029'Magnetic recording medium manufacturing method'20128,159,767'Repeatable runout evaluation method for a stamper'20128,153,205'Patterned medium and method of manufacturing the same'20128,142,693'Stamper and stamper evaluation method'20128,116,022'Magnetic recording apparatus, magnetic recording medium, and method of testing magnetic recording apparatus'20128,102,616'Magnetic recording medium, method of fabricating the same, and magnetic recording apparatus'20128,097,351'Magnetic recording apparatus'20128,077,416'Magnetic recording medium formatted with ROM and RAM regions'20118,070,968'Ultraviolet-curable resin material for pattern transfer and magnetic recording medium manufacturing method using the same'20118,059,368'Substrate for magnetic recording medium, magnetic recording medium, and magnetic recording apparatus'20118,057,689'Method of manufacturing magnetic recording medium'20118,057,214'Method and apparatus for manufacturing plate-like structure'20118,043,516'Method of manufacturing magnetic recording medium and magnetic recording medium'20118,029,682'Method of manufacturing magnetic recording medium'20118,017,023'Method of manufacturing magnetic recording medium and magnetic recording medium'20118,012,361'Method of manufacturing magnetic recording medium'20118,002,997'Method of manufacturing magnetic recording medium and magnetic recording medium'20117,993,536'Method of manufacturing magnetic recording medium'20117,983,004'Magnetic recording medium with magnetic film pattern sidewalls having at least two faces of different slope angles and magnetic recording apparatus having the same'20117,978,434'Magnetic recording medium, method of fabricating the same, and magnetic recording apparatus'20117,972,523'Method of manufacturing magnetic recording medium'20117,967,993'Method of manufacturing magnetic recording medium'20117,938,978'Method of manufacturing stamper'20117,936,537'Substrate for magnetic recording medium, magnetic recording medium, and magnetic recording and reproducing apparatus'20117,933,088'Disk drive having a disk of discrete-track media type'20117,927,467'Method of manufacturing discrete track recording medium and discrete track recording medium'20117,923,136'Magnetic recording medium and method of manufacturing the same'20117,898,768'Patterned medium with magnetic pattern depth relationship'20117,894,155'Magnetic recording medium, method of fabricating the same, and magnetic recording apparatus'20117,848,046'Magnetic disk apparatus'20107,833,458'Imprinting method and stamper'20107,826,176'Magnetic recording medium with thicker protective film in edge areas and magnetic recording apparatus using the medium'20107,803,304'Method and apparatus for manufacturing plate-like structure'20107,782,562'Magnetic recording media and magnetic recording device'20107,771,602'Method and apparatus for manufacturing magnetic recording media'20107,760,467'Substrate for magnetic recording medium, magnetic recording medium, and magnetic recording apparatus'20107,746,587'Magnetic recording apparatus and magnetic recording and reproducing apparatus'20107,740,767'Method and apparatus for manufacturing patterned media'20107,738,213'Magnetic disk medium, reticle and magnetic recording and reproducing apparatus'20107,738,203'Magnetic recording medium Formatted with ROM and RAM regions'20107,708,543'Stamper for magnetic recording media, method of manufacturing magnetic recording media using the same, and method of manufacturing stamper for magnetic recording media'20107,669,340'Surveying apparatus'20107,662,264'Method for producing magnetic recording medium'20107,635,529'Substrate for magnetic recording media, magnetic recording media and magnetic recording apparatus'20097,623,311'Recording media, recording and reproducing apparatus, and method for recording and reproducing'20097,618,549'Method of forming patterns and method of manufacturing magnetic recording media'20097,580,223'Magnetic recording media, substrate for magnetic recording media, and magnetic recording apparatus'20097,575,705'Method for manufacturing a magnetic recording medium utilizing first and second imprint stampers'20097,572,528'Magnetic recording medium, method of manufacturing the same, and magnetic recording/reproduction apparatus'20097,503,123'Surveying apparatus'20097,504,149'Hard multilayer coating, and hard multilayer coated tool including the hard multilayer coating'20097,412,926'Imprint apparatus and imprint method'20087,388,725'Magnetic recording media, method of manufacturing the same and magnetic recording apparatus'20087,345,838'Magnetic recording media and magnetic recording and reproducing apparatus'20087,314,833'Method for manufacturing substrate for discrete track recording media and method for manufacturing discrete track recording media'20087,306,743'Recording medium, method of manufacturing recording medium and recording apparatus'20077,203,969'Recording medium, recording-medium management method, and recording-medium management system'20077,125,594'Write-once optical recording medium'20067,115,208'Method of manufacturing recording medium'20067,067,207'Magnetic recording medium having a patterned soft magnetic layer'20067,033,643'Process of manufacturing a coated body'20066,977,108'Recording medium including patterned tracks and isolation regions'20056,974,946'Transmission stacked photodetector'20056,809,308'Photodetector and photodetecting system capable of detecting information about the two-dimensional intensity distribution and wavelength distribution of incident light'20046,783,796'Method of manufacturing an electronic device'20046,748,865'Nano-imprinting method, magnetic printing method and recording medium'20046,517,688'Method of smoothing diamond coating, and method of manufacturing diamond-coated body'20036,447,879'Electronic Device and method of manufacturing the same'20026,310,282'Photovoltaic conversion element and a dye-sensitizing photovoltaic cell'20016,309,738'Hard multilayer coated tool having increased toughness'20015,352,119'Disposable dental prophy angle handpiece'19945,340,311'Dental handpiece'19945,336,089'Dental handpiece'19945,303,491'Simulated novelty container capable of movement'19945,134,796'Simulated novelty container capable of movement'19924,772,795'UV-sterilizer for a dental implement such as a reamer and drill'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1994Based in Sakado, JP· patent location history
1992–2015Based in Tokyo, JP· patent location history
2001–2016Patents assigned to TOSHIBA KK (97)· patent assignee history
2001–2020Based in Toyokawa, JP· patent location history
2004–2016Based in Nerima-ku, JP· patent location history
2009–2010Based in Saitama, JP· patent location history
2011–2019Patents assigned to SAKURAI MASATOSHI (46)· patent assignee history
2011–2014Patents assigned to KAMATA YOSHIYUKI (20)· patent assignee history
2011–2015Patents assigned to KIMURA KAORI (12)· patent assignee history
2011–2014Patents assigned to SHIROTORI SATOSHI (11)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOSHIBA KK | 97 | 2001–2016 |
| SAKURAI MASATOSHIself | 46 | 2011–2019 |
| KAMATA YOSHIYUKI | 20 | 2011–2014 |
| KIMURA KAORI | 12 | 2011–2015 |
| SHIROTORI SATOSHI | 11 | 2011–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 96 | 1992–2015 |
| Toyokawa, JP | 10 | 2001–2020 |
| Nerima-ku, JP | 4 | 2004–2016 |
| Sakado, JP | 3 | 1988–1994 |
| Saitama, JP | 2 | 2009–2010 |