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Inventor

Hiromichi Kobayashi

Inventor
Kashiwa, JP

Overview

47→
Patents
1989–2017
Patent span
Chemistry
Primary field (CPC C)

Patents· 47 as inventor

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

G03Gprimary
G03GElectrography24%
C04BLime, magnesia20%
Y10TTechnical subjects covered by former us classification8%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h106%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
B28BShaping clay or other ceramic compositions4%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h104%
C23CCoating metallic material2%
H04NPictorial communication, e.g. television2%
PatentTitleYear
9,713,581'Magnetic powder for cosmetic agent'20178,628,905'Ferrite core material for resin-filled type carrier, resin-filled type carrier, and electrophotographic developer using the carrier'20148,475,988'Resin-filled ferrite carrier core material for electrophotographic developer, ferrite carrier and electrophotographic developer using the ferrite carrier'20138,431,311'Resin-filled carrier for electrophotographic developer, and electrophotographic developer using the resin-filled carrier'20138,187,781'Resin-filled ferrite carrier for electrophotographic developer, production method thereof and electrophotographic developer using the ferrite carrier'20128,168,364'Resin-filled carrier for electrophotographic developer, and electrophotographic developer using the resin-filled carrier'20128,026,033'Ferrite carrier for electrophotographic developer and electrophotographic developer'20117,914,715'Granulating method, granulated particle(s) and granulating device'20117,880,483'Method for inspecting quality of core material for electrophotographic ferrite carrier'20117,598,011'Irregular shaped ferrite carrier and electrophotographic developer using the ferrite carrier'20097,566,519'Carrier for electrophotographic developer, and electrophotographic developer using the same'20097,553,597'Carrier core material, coated carrier, and two-component developing agent for electrophotography'20097,476,483'Carrier for electrophotographic developer and two-component electrophotographic developer'20097,442,483'Ferrite carrier for electrophotographic developer and method for preparing the same, and electrophotographic developer using the same'20087,288,355'Carrier for electrophotography developers, developer prepared by using the carrier and method for forming image'20077,183,033'Carrier core material, coated carrier, two-component developing agent for electrophotography, and image forming method'20077,086,380'Apparatus for controlling throttle valve of internal combustion engine'20066,905,806'Dry two-component type developer for electrophotography'20056,787,471'Method of manufacturing a semiconductor device'20046,713,198'Ceramic laminated article, a method of producing the same and a ceramic laminate'20046,706,428'Ceramic sintered bodies and a method of producing the same'20046,686,113'Carrier for electrophotographic developer and developer containing the same'20046,670,294'Corrosion-resistive ceramic materials and members for semiconductor manufacturing'20036,627,369'Carrier for electrophotographic developer and developer containing the same'20036,617,059'Method of forming silicon carbide film on aluminum nitride, film structure and silicon carbide film'20036,549,392'Method for reducing particles from an electrostatic chuck and an equipment for manufacturing a semiconductor'20036,544,707'Two component developing agent and an image forming apparatus by use of the same'20036,545,336'Semiconductor device, and method of manufacturing the same'20036,508,964'Method of manufacturing ceramic sintered bodies'20036,486,084'Composite material and method of producing the same'20026,306,325'Method of manufacturing ceramic sintered bodies'20016,174,583'Aluminum nitride sintered body, metal including member, electrostatic chuck, method of producing aluminum nitride sintered body, and method of producing metal including member'20016,150,233'Semiconductor device and method of manufacturing the same'20006,124,068'Carrier for electrophotographic development and electrophotographic developer containing the same'20006,071,663'Carrier for electrophotographic development and electrophotographic developer containing the same'20006,071,465'Bonded articles and a process for producing the same'20005,998,320'Aluminum nitride sintered body, metal including member, electrostatic chuck, method of producing aluminum nitride sintered body, and method of producing metal including member'19995,908,799'Apparatus for producing semiconductor using aluminum nitride bodies as substrates'19995,897,916'Process for production of coated ceramic member'19995,767,027'Aluminum nitride sintered body and its production method'19985,728,635'Aluminum nitride sintered bodies'19985,721,062'Bonded articles and a process for producing the same'19985,683,824'Coated ceramic member and process for production thereof'19975,595,850'Ferrite carrier for electrophotographic developer and developer containing the carrier'19975,306,895'Corrosion-resistant member for chemical apparatus using halogen series corrosive gas'19945,035,633'Data-processing apparatus in which a card-shaped recording medium is used'19914,879,596'Stereoscopic camera apparatus which incorporates cameras and can commonly adjust directions of the cameras'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2004Patents assigned to NGK INSULATORS LTD (17)· patent assignee history
1994–2004Based in Yokkaichi, JP· patent location history
1997–2014Patents assigned to POWDERTECH CO LTD (22)· patent assignee history
1997–2014Based in Kashiwa, JP· patent location history
2000–2004Based in Tokyo, JP· patent location history
2007–2017Based in Chiba, JP· patent location history
2012–2014Patents assigned to KOBAYASHI HIROMICHI (5)· patent assignee history
2012–2013Patents assigned to SUGIURA TAKAO (4)· patent assignee history
2012–2013Patents assigned to GONDO TAKESHI (2)· patent assignee history
2012–2013Based in Nagareyama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
POWDERTECH CO LTD221997–2014
NGK INSULATORS LTD171994–2004
KOBAYASHI HIROMICHIself52012–2014
SUGIURA TAKAO42012–2013
GONDO TAKESHI22012–2013
Locations
LocationPatentsSpan
Kashiwa, JP161997–2014
Yokkaichi, JP161994–2004
Chiba, JP42007–2017
Tokyo, JP32000–2004
Nagareyama, JP22012–2013