Inventor

Akio Shinagawa

Inventor

Kawasaki, JP

Overview

1985–2016

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.

G06Nprimary

G06NComputing arrangements based on specific computational models26%

G06FElectric digital data processing17%

G01CMeasuring distances, levels or bearings13%

G06TImage data processing or generation, in general9%

H03MCoding9%

H04MTelephonic communication9%

G10HElectrophonic musical instruments4%

H04BTransmission4%

H04NPictorial communication, e.g. television4%

H04WWireless communication networks4%

PatentTitleYear

9,482,543'Path searching method and path search device'2016 9,222,792'Path searching method and path search device'2015 8,898,015'Path searching method and path search device'2014 8,670,937'Path searching method and path search device'2014 7,197,149'Cellular phone'2007 6,928,306'Portable mobile unit'2005 6,748,574'Method of and apparatus for determining an optimal solution to a uniform-density layout problem, and medium on which a program for determining the solution is stored'2004 6,675,155'Layout method arranging nodes corresponding to LSI elements having a connecting relationship'2004 6,412,100'Method for solving a layout optimization problem, and computer-readable recording medium having a layout optimization problem processing program recorded thereon'2002 6,363,368'Optimum solution search method and optimum solution search apparatus as well as storage medium in which optimum solution search program is stored'2002 6,052,678'Problem solving operation apparatus using a state transition'2000 5,897,629'Apparatus for solving optimization problems and delivery planning system'1999 5,748,715'Method of communications between telephone and facsimile apparatus and facsimile apparatus capable of communications with telephone'1998 5,748,122'Data processing apparatus and data processing method'1998 5,635,932'Lempel-ziv compression with expulsion of dictionary buffer matches'1997 4,517,640'Stack machine with improved cache memory for variables'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2016Patents assigned to FUJITSU LTD (12)· patent assignee history

1985–2005Based in Tokyo, JP· patent location history

1997–2004Based in Kawasaki, JP· patent location history

1998–2007Patents assigned to HITACHI LTD (3)· patent assignee history

1998–2007Based in Hitachinaka, JP· patent location history

2014–2016Based in Nakano-ku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FUJITSU LTD	12	1985–2016
HITACHI LTD	3	1998–2007

Locations

Location	Patents	Span
Kawasaki, JP	8	1997–2004
Nakano-ku, JP	4	2014–2016
Hitachinaka, JP	2	1998–2007
Tokyo, JP	2	1985–2005