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Inventor

Takashi Namekawa

Inventor
Hitachi, JP

Overview

39→
Patents
1978–2011
Patent span
Physics
Primary field (CPC G)

Patents· 39 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 transducer22%
C03CChemical composition of glasses, glazes or vitreous enamels19%
Y10TTechnical subjects covered by former us classification13%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h109%
B82YSpecific uses or applications of nanostructures4%
H05KPrinted circuits4%
C09KMaterials for miscellaneous applications, not provided for elsewhere3%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
C22CAlloys2%
PatentTitleYear
8,075,961'Display apparatus'20118,071,183'Display apparatus'20118,022,000'Display device and production method thereof'20117,755,269'Spacer and image display panel using the same'20107,586,755'Electronic circuit component'20097,535,106'Wiring glass substrate for connecting a semiconductor chip to a printed wiring substrate and a semiconductor module having the wiring glass substrate'20097,452,489'Conductive material, method of producing the same, visual display device, and glass spacer thereof'20087,259,936'Glass substrate for a magnetic disk, a magnetic disk which can be formed with a stable texture and a magnetic disk device'20077,232,612'Glass substrate of disk for recording information, a disk for recording information, and a disk device for recording information'20077,183,650'Wiring glass substrate for connecting a semiconductor chip to a printed wiring substrate and a semiconductor module having the wiring glass substrate'20077,169,334'Optical information recording medium'20077,035,049'Glass substrate for a magnetic disk, a magnetic disk which can be formed with a stable texture and a magnetic disk device'20066,933,601'Semiconductor connection substrate'20056,844,092'Optically functional element and production method and application therefor'20056,801,397'Glass substrate for a magnetic disk, a magnetic disk which can be formed with a stable texture and a magnetic disk device'20046,790,502'Optically functional element and production method and application therefor'20046,784,538'Heat transfer structure for a semiconductor device utilizing a bismuth glass layer'20046,768,193'Heat transfer structure for a semiconductor device utilizing a bismuth glass layer'20046,689,456'Magnetic recording medium, a manufacturing method thereof, and a magnetic recording unit using thereof'20046,667,946'Optical information recording medium'20036,577,472'Glass substrate for a magnetic disk, a magnetic disk which can be formed with a stable texture'20036,512,655'Magnetic head with sealing glass composition'20036,503,858'Glass composition, structure, and apparatus using the same'20036,440,517'Glass material'20026,411,591'Optical recording medium and optical memory device'20026,177,169'Optical information recording medium'20016,150,027'Glass composition, structure, and apparatus using the same'20006,136,401'Glass substrate of disk for recording information, a disk for recording information, and a disk device for recording information'20006,040,029'Glass substrate of disk for recording information, a disk for recording information, and a disk device for recording information'20005,985,401'Optical information recording medium'19995,519,555'Magnetic head including PbO-V.sub.2 O.sub.5 -P.sub.2 O.sub.5 system glass bonding'19965,239,434'Magnetic head, bonding glass used therefor and magnetic recording and reproducing apparatus'19934,816,949'Magnetic head containing amorphous alloy and crystallizable glass'19894,794,483'Magnetic head having layers of amorphous magnetic alloy bonded together with a glass containing vandium oxide phosphorus oxide and antimony oxide'19884,780,695'Refractory leakage coaxial cable'19884,741,849'Ceramic body glass composition for bonding and filling ceramic parts thereof'19884,470,063'Copper matrix electrode having carbon fibers therein'19844,229,631'Vacuum-type circuit breaker'19804,083,719'Copper-carbon fiber composites and process for preparation thereof'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–2009Patents assigned to HITACHI LTD (29)· patent assignee history
1978–2011Based in Hitachi, JP· patent location history
1988Based in Ibaraki, JP· patent location history
2008–2011Patents assigned to HITACHI DISPLAYS LTD (5)· patent assignee history
2011Patents assigned to ASAKURA SHUNICHI (2)· patent assignee history
2011Patents assigned to HATORI AKIRA (2)· patent assignee history
2011Patents assigned to HAYASHIBARA MITSUO (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD291978–2009
HITACHI DISPLAYS LTD52008–2011
ASAKURA SHUNICHI22011
HATORI AKIRA22011
HAYASHIBARA MITSUO22011
Locations
LocationPatentsSpan
Hitachi, JP381978–2011
Ibaraki, JP11988