LexDanaLexDanabeta
Inventor

Atsushi Hatakeyama

Inventor
Kawasaki, JP

Overview

87→
Patents
1988–2020
Patent span
Physics
Primary field (CPC G)

Patents· 87 as inventor

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

G06Fprimary
G06FElectric digital data processing21%
G11CStatic stores15%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
G06VImage or video recognition or understanding6%
H04NPictorial communication, e.g. television5%
G02BOptical elements, systems or apparatus4%
H03KPulse technique4%
H04LTransmission of digital information, e.g. telegraphic communication3%
B41JTypewriters2%
C02FTreatment of water, waste water, sewage, or sludge2%
PatentTitleYear
10,628,488Document retrieval system and retrieval method202010,423,613Data search method and data search system201910,394,870Search method201910,396,352Non-aqueous electrolyte battery, method for manufacturing same, and non-aqueous electrolyte battery system20199,911,968'Electrode active material, method for producing same, electrode for nonaqueous secondary battery, and nonaqueous secondary battery'20189,515,001'Semiconductor device having potential monitoring terminal to monitor potential of power-supply line'20169,021,480'Security management device and method'20159,005,435'Structure for opening section, and water purification cartridge'20158,566,391'System and method for evaluating application suitability in execution environment'20138,547,502'Light source module'20138,321,863'Security management device and method'20128,250,205'Business process management system, method thereof, process management computer and program thereof'20128,164,583'Display device'20128,041,591'Business process operation method and system'20117,908,314'Method for controlling a management computer'20117,872,219'Illumination device with plural color light sources and first and second integrators'20117,365,721'Projection display'20087,360,214'Method and system for displaying integrated log information'20087,316,484'Illuminator and projection image display employing it'20087,307,885'Multi-value nonvolatile semiconductor memory device equipped with reference cell and load balancing circuit'20077,224,602'Semiconductor memory device and control method having data protection feature'20077,185,089'Method and system for displaying integrated log information'20077,184,296'Memory device'20076,774,655'Semiconductor device, method of testing the semiconductor device, and semiconductor integrated circuit'20046,698,895'Projection image display'20046,666,558'Projection image display'20036,641,717'Water purifier'20036,626,378'Shower apparatus'20036,628,248'Image display apparatus and method for compensating display image of image display apparatus'20036,621,283'Semiconductor device, method of testing the semiconductor device, and semiconductor integrated circuit'20036,511,184'Color image display apparatus'20036,508,554'Projection-type image display apparatus'20036,422,484'Shower apparatus'20026,337,820'Dynamic memory device performing stress testing'20026,236,605'Semiconductor integrated circuit and semiconductor memory device including overdriving sense amplifier'20016,181,637'Memory device'20016,182,062'Knowledge based information retrieval system'20016,166,992'Semiconductor device'20006,151,274'System configured of synchronous semiconductor device for adjusting timing of each input and semiconductor device used therefor'20006,094,647'Presearch type document search method and apparatus'20006,078,514'Semiconductor device and semiconductor system for high-speed data transfer'20006,042,236'Projection type video image display device'20006,028,816'System configured of synchronous semiconductor device for adjusting timing of each input and semiconductor device used therefor'20006,009,039'Semiconductor device'19996,003,043'Text data registering and retrieving system including a database storing a plurality of document files therin and a plural-character occurrence table for a text index and an update text buffer to retrieve a target document in cooperation with the database'19995,986,960'Semiconductor integrated circuit'19995,978,884'Semiconductor memory device having a single line data bus and latch circuits for improved pipeline operations'19995,907,515'Semiconductor memory device'19995,889,725'Decoder circuit for a semiconductor memory device'19995,874,853'Semiconductor integrated circuit system'19995,862,094'Semiconductor device and a semiconductor memory device'19995,828,613'Random-access memory'19985,767,712'Semiconductor device'19985,761,151'Pulse generator for generating a plurality of output pulses in response to an input pulse'19985,757,983'Document retrieval method and system'19985,757,691'Semiconductor memory device having wiring for selection of redundant cells but without useless region on chip'19985,748,953'Document search method wherein stored documents and search queries comprise segmented text data of spaced, nonconsecutive text elements and words segmented by predetermined symbols'19985,745,745'Text search method and apparatus for structured documents'19985,696,564'Video projector'19975,668,763'Semiconductor memory for increasing the number of half good memories by selecting and using good memory blocks'19975,628,003'Document storage and retrieval system for storing and retrieving document image and full text data'19975,617,364'Semiconductor memory device'19975,555,408'Knowledge based information retrieval system'19965,553,226'System for displaying concept networks'19965,519,857'Hierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatus'19965,508,565'Semiconductor device having a plurality of chips having identical circuit arrangement sealed in package'19965,469,354'Document data processing method and apparatus for document retrieval'19955,454,105'Document information search method and system'19955,452,451'System for plural-string search with a parallel collation of a first partition of each string followed by finite automata matching of second partitions'19955,420,869'Semiconductor integrated circuit device'19955,404,506'Knowledge based information retrieval system'19955,321,423'Document information system and document data transfer and display method'19945,278,981'Character stream search apparatus using a finite state automation'19945,265,242'Document retrieval system for displaying document image data with inputted bibliographic items and character string selected from multiple character candidates'19935,253,204'Semiconductor memory device having a boost circuit'19935,220,625'Information search terminal and system'19935,168,533'Hierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatus'19925,140,644'Character string retrieving system and method'19925,138,669'Range-conditional character string retrieving method and system'19925,124,724'Color thermal printer'19925,110,227'Color printer'19925,051,886'System for character stream search using finite state automaton technique'19915,021,989'Document browsing apparatus with concurrent processing and retrievel'19914,990,933'Color thermal printer'19914,985,863'Document storage and retrieval system'19914,812,064'Sheet securing mechanism'19894,757,302'Image display apparatus'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2020Patents assigned to HITACHI LTD (35)· patent assignee history
1988–2001Based in Kokubunji, JP· patent location history
1989–1992Patents assigned to EASTMAN KODAK CO (4)· patent assignee history
1989–2020Based in Tokyo, JP· patent location history
1993–2007Patents assigned to FUJITSU LTD (27)· patent assignee history
1993–2018Patents assigned to HATAKEYAMA ATSUSHI (8)· patent assignee history
1993–2007Based in Kawasaki, JP· patent location history
1997–2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (9)· patent assignee history
2003–2019Based in Osaka, JP· patent location history
2007–2015Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD351988–2020
FUJITSU LTD271993–2007
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD91997–2008
HATAKEYAMA ATSUSHIself81993–2018
EASTMAN KODAK CO41989–1992
Locations
LocationPatentsSpan
Kawasaki, JP291993–2007
Kokubunji, JP201988–2001
Tokyo, JP151989–2020
Osaka, JP92003–2019
Yokohama, JP72007–2015