LexDanaLexDanabeta
Inventor

Masashi Yamamoto

Inventor
Hitachi, JP

Overview

107→
Patents
1985–2020
Patent span
Physics
Primary field (CPC G)

Patents· 107 as inventor

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

G03Gprimary
G03GElectrography20%
C08LCompositions of macromolecular compounds9%
H10HInorganic light-emitting semiconductor devices having potential barriers3%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h103%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
C09DCoating compositions, e.g. paints, varnishes or lacquers3%
B82YSpecific uses or applications of nanostructures2%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds2%
C08JWorking-up2%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients2%
PatentTitleYear
10,829,632Hydrogenated block copolymer, polypropylene resin composition, and molded body202010,793,585Phosphoric acid diester salt, production method therefor, non-aqueous electrolytic solution for power storage element, and power storage element202010,781,329Aqueous ink, ink cartridge and ink jet recording method202010,703,892Resin composition and molded body202010,703,848Hydrogenated block copolymer, polypropylene resin composition, and molding202010,643,387Three-dimensional data display device, three-dimensional data display method, and program202010,600,446Video reproducing device, video reproducing method, and program202010,577,437Hydrogenated block copolymer and polypropylene-based resin composition using the same and molded article thereof202010,253,200Aqueous ink, ink cartridge, and ink jet recording method201910,224,692Surface emitting laser element and optical device201910,026,516Collimator apparatus, radiation system, and method for controlling collimators20189,809,721'Aqueous ink, ink cartridge, and ink jet recording method'20179,789,694'Ink jet recording method and ink jet recording apparatus'20179,327,879'Multilayer body and container'20169,187,662'Ink, ink cartridge and ink jet recording method'20159,167,825'Method for manufacturing liquid fermented milk'20159,048,025'Electrode for electric storage device, electric storage device and manufacturing method of electrode for electric storage device'20158,883,504'Cell differentiation suppressing agent, method of culturing cells using the same, culture solution, and cultured cell line'20148,876,962'Aqueous ink, ink cartridge, and ink jet recording method'20148,747,690'Quaternary ammonium salt and composition, and electrochemical device'20148,583,025'Image forming apparatus which decreases a sheet transportation speed difference between a registration device and a transfer device'20138,366,956'Quaternary ammonium salt and composition, and electrochemical device'20138,165,905'Data processing unit, data processing method, and program product for determining a transshipment method'20128,138,678'Charged particle beam decelerating device and method, and X-ray generating apparatus using the same'20128,030,665'Nitride semiconductor device comprising bonded substrate and fabrication method of the same'20117,912,363'Object determining device and imaging apparatus'20117,886,563'Washing and drying apparatus and method of controlling the same'20117,873,474'Driving assist system for vehicle'20117,834,197'Quaternary ammonium salt, electrolyte, and electrochemical device'20107,796,905'Multicolor image forming apparatus'20107,526,193'Object determining device and imaging apparatus'20097,493,063'Image-forming device comprising a contact charging unit'20097,463,849'Image forming apparatus including static pre-eliminator'20087,378,334'Nitride semiconductor device comprising bonded substrate and fabrication method of the same'20087,194,524'Information processing system, information disclosing server, and portal server'20077,142,794'Image forming apparatus'20067,105,857'Nitride semiconductor device comprising bonded substrate and fabrication method of the same'20067,049,635'Opposed terminal structure having a nitride semiconductor element'20066,946,683'Opposed terminal structure having a nitride semiconductor element'20056,916,676'Method for producing a nitride semiconductor element'20056,891,630'Image recording method and image recording apparatus'20056,876,831'Image forming apparatus for conducting speed compensation by internal transcription belt cycle measurement'20056,873,837'Emergency reporting system and terminal apparatus therein'20056,836,632'Small-size color electro-photographic apparatus'20046,775,507'Non-fixing type image receiving sheet, image forming method and image forming apparatus'20046,760,564'Picture image forming apparatus with intermediate transfer belt trained around two rollers of different diameter'20046,744,071'Nitride semiconductor element with a supporting substrate'20046,731,116'Short-circuit detector'20046,697,586'Photoconductor unit and image forming system'20046,661,994'Electrophotographic image forming system'20036,577,827'Image forming apparatus and method thereof'20036,574,451'Small-size color electro-photographic apparatus'20036,560,435'Electrophotographic image forming device having projections on a surface of an intermediate transfer body'20036,501,925'Photoconductor unit and image forming system'20026,381,428'Photoconductor unit and image forming system'2002D0456311'Automobile'20026,337,641'Emergency reporting system and terminal apparatus therein'20026,310,543'Emergency call system'2001D0449393'Rear combination lamp for an automobile'20016,143,364'Hot dip plating method and apparatus'20006,085,051'Small-size color electro-photographic apparatus'20005,845,172'Image forming apparatus having rotatable charging brush with varying charging voltage'19985,815,775'Color electro-photographic apparatus'19985,815,396'Vacuum processing device and film forming device and method using same'19985,774,169'Image forming apparatus'19985,761,568'Electro-photographic apparatus having transfer bias control'19985,729,267'Image forming apparatus having image transfer with toner cleaning function'19985,707,500'Vacuum processing equipment, film coating equipment and deposition method'19985,689,777'Image forming apparatus having contact charger'19975,666,599'Color electro-photographic printing apparatus'19975,600,420'Image transfer element in a color image forming apparatus'19975,576,808'Image forming apparatus having contact charger'19965,576,807'Image forming apparatus having a contact type charging device'19965,557,375'Contact type charging device and image forming apparatus having the same'19965,548,013'Thermoplastic resin composition'19965,541,717'Cleaning method for contact charging means in image forming apparatus'19965,504,561'Contact charger and image forming apparatus provided with same'19965,484,824'Thermoplastic polypropylene resin composition'19965,428,091'Thermoplastic resin compositions comprising polyphenylene ether, polyolefins and dinitrodiamines'19955,420,201'Thermoplastic resin composition comprising modified polypropylene, anhydride containing copolymer and epoxy containing copolymer'19955,409,991'Thermoplastic propylene resin composition'19955,402,213'Charging device for charging outer surface of photosensitive member including charging member formed by a layer comprising a copolymer of an olefin-type vinyl monomer and a fluorine-contained monomer'19955,391,607'Thermoplastic resin composition'19955,385,976'Thermoplastic resin composition'19955,376,995'Contact charger having a curved surface'19945,330,269'Package'19945,322,894'Blended polypropylene-epoxy group containing copolymer thermoplastic resin compositions'19945,312,867'Thermoplastic propylene resin composition'19945,300,568'Thermoplastic resin composition'19945,278,233'Thermoplastic resin composition'19945,260,366'Thermoplastic elastomer composition and process for producing same'19935,180,764'Stabilized polypropylene resin compositions containing a dinitrodiamine compound'19935,087,654'Polypropylene resin composition'19925,081,186'Thermoplastic olefin resin composition'19925,061,963'Monocomponent developing device'19915,060,021'Monocomponent developing device'19915,009,080'Low-temperature show case'19915,008,708'Monocomponent developing device'19914,990,963'Developing member composed of conductive particles in a dielectric material and having a variable volume resistivity'19914,974,028'Electrostatic latent image developing device for monocomponent toner comprising plural toner transport members with different electroconductivity'19904,973,540'Developer for electrostatic latent image containing fine particle comprising positively and negatively chargeable polar group'19904,962,865'Insulating box and a method for its manufacture'19904,907,032'Monocomponent developing device'19904,827,305'Developing apparatus'19894,806,633'Method of manufacturing moranoline derivatives'19894,791,882'Loosely mounted outer sleeve member with biasing means'19884,521,487'Particulate polyolefin expansion molding material'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1996Patents assigned to SUMITOMO CHEMICAL CO (16)· patent assignee history
1988–1995Patents assigned to MINOLTA CAMERA KK (10)· patent assignee history
1990–2016Based in Osaka, JP· patent location history
1992–1996Based in Ichihara, JP· patent location history
1994–2003Based in Settsu, JP· patent location history
1996–2004Patents assigned to MINOLTA CO LTD (10)· patent assignee history
1997–2005Patents assigned to HITACHI LTD (17)· patent assignee history
1997–2009Based in Hitachi, JP· patent location history
2000–2020Based in Tokyo, JP· patent location history
2012–2018Patents assigned to YAMAMOTO MASASHI (10)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD171997–2005
SUMITOMO CHEMICAL CO161985–1996
MINOLTA CAMERA KK101988–1995
MINOLTA CO LTD101996–2004
YAMAMOTO MASASHIself102012–2018
Locations
LocationPatentsSpan
Hitachi, JP181997–2009
Tokyo, JP122000–2020
Ichihara, JP111992–1996
Osaka, JP101990–2016
Settsu, JP91994–2003