Inventor

Kazuhiro Kawashima

Inventor

Yokohama, JP

Overview

21→

Patents

1989–2013

Patent span

Physics

Primary field (CPC G)

Patents· 21 as inventor

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

G06Qprimary

G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes18%

G06FElectric digital data processing11%

G07FCoin-freed or like apparatus9%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

B22FWorking metallic powder5%

H01FMagnets5%

H03GControl of amplification5%

H04BTransmission5%

H04MTelephonic communication5%

LOC145%

PatentTitleYear

8,414,984'Powder for magnetic core, method for manufacturing powder for magnetic core, and dust core'2013 8,337,638'Powder for dust core and method for producing the same'2012 6,728,686'Electronic money holding device and electronic money automatic payment method'2004 6,505,297'IC card terminal device and installation of application program into IC card terminal device'2003 6,502,078'Electronic money holding device and electronic money automatic payment method'2002 6,058,382'Electronic money holding device utilizing an automatic payment method'2000 D0411524'IC card reader and writer'1999 D0405070'IC card reader and writer'1999 5,845,728'Body frame for motorcycle'1998 5,764,975'Data mining method and apparatus using rate of common records as a measure of similarity'1998 5,590,272'Method and system for a high-reliable disk system'1996 5,444,736'Radio communication apparatus having an automatic frequency control circuit for controlling a transmission frequency on the basis of a reception frequency'1995 5,408,698'Radio tele-communication device having function of variably controlling received signal level'1995 5,303,144'Computer aided planning support system'1994 5,303,147'Computer aided planning method and system'1994 5,241,465'Method for determining optimum schedule in computer-aided scheduling system'1993 5,201,068'Radio telecommunications apparatus'1993 5,168,445'Automatic ordering system and method for allowing a shop to tailor ordering needs'1992 4,998,291'Radio telephone apparatus'1991 4,901,229'Parallelized rules processing system using associative memory for pipelined execution of plural join operations and concurrent condition comparing'1990 4,839,803'Planning support method and system'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2004Patents assigned to HITACHI LTD (12)· patent assignee history

1989–2004Based in Yokohama, JP· patent location history

1990–2013Patents assigned to KAWASHIMA KAZUHIRO (3)· patent assignee history

1990Based in Kohoku-ku, Yokohama-shi, Kanagawa, JP· patent location history

1991–1995Patents assigned to TOSHIBA KK (4)· patent assignee history

1991–1993Based in Tokyo, JP· patent location history

1993–1994Patents assigned to HITACHI MICROCOMPUTER SYST (2)· patent assignee history

1998Based in Saitama, JP· patent location history

2012–2013Patents assigned to FINE SINTER CO LTD (2)· patent assignee history

2012–2013Based in Kasugai, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	12	1989–2004
TOSHIBA KK	4	1991–1995
KAWASHIMA KAZUHIROself	3	1990–2013
FINE SINTER CO LTD	2	2012–2013
HITACHI MICROCOMPUTER SYST	2	1993–1994

Locations

Location	Patents	Span
Yokohama, JP	15	1989–2004
Kasugai, JP	2	2012–2013
Tokyo, JP	2	1991–1993
Saitama, JP	1	1998
Kohoku-ku, Yokohama-shi, Kanagawa, JP	1	1990