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Inventor

Takahiko Kawatani

Inventor
Kanagawa, JP

Overview

16→
Patents
1979–2021
Patent span
Physics
Primary field (CPC G)

Patents· 16 as inventor

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

G06Fprimary
G06FElectric digital data processing57%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests26%
G06VImage or video recognition or understanding9%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes4%
H04NPictorial communication, e.g. television4%
PatentTitleYear
10,951,805Image generating apparatus and image generating method20218,171,026'Method and vector analysis for a document'20127,562,066'Method of vector analysis for a document'20097,499,923'Document clustering method and apparatus based on common information of documents'20097,392,175'Evaluating commonality of documents using segment vector, co-occurrence matrix, and common co-occurrence matrix'20087,308,138'Document segmentation method'20077,225,120'Method of extracting important terms, phrases, and sentences'20077,200,802'Evaluating distinctiveness of document'20077,194,461'Document and information retrieval method and apparatus'20077,185,008'Document classification method and apparatus'20076,778,704'Method and apparatus for pattern recognition using a recognition dictionary partitioned into subcategories'20046,671,404'Method and apparatus for recognizing patterns'20036,466,926'Method for optimizing a recognition dictionary to distinguish between patterns that are difficult to distinguish'20026,038,343'Character recognition method and apparatus using writer-specific reference vectors generated during character-recognition processing'20005,602,938'Method of generating dictionary for pattern recognition and pattern recognition method using the same'19974,163,214'Character recognition system'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1997Patents assigned to NIPPON TELEGRAPH & TELEPHONE (2)· patent assignee history
1979Based in Yokosuka, JP· patent location history
1997–2009Based in Yokohama, JP· patent location history
2000Patents assigned to HEWLETT PARKARD COMPANY (1)· patent assignee history
2002Patents assigned to HEWLETT PACKARD CO (1)· patent assignee history
2003–2012Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (11)· patent assignee history
2003–2012Based in Kanagawa, JP· patent location history
2021Patents assigned to HONDA MOTOR CO LTD (1)· patent assignee history
2021Based in Wako, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HEWLETT PACKARD DEVELOPMENT CO112003–2012
NIPPON TELEGRAPH & TELEPHONE21979–1997
HEWLETT PACKARD CO12002
HEWLETT PARKARD COMPANY12000
HONDA MOTOR CO LTD12021
Locations
LocationPatentsSpan
Kanagawa, JP82003–2012
Yokohama, JP61997–2009
Wako, JP12021
Yokosuka, JP11979