Inventor

Takeharu Arakawa

Inventor

Kawagoe, JP

Overview

1994–2010

Patent span

Physics

Primary field (CPC G)

Patents· 17 as inventor

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

G01Cprimary

G01CMeasuring distances, levels or bearings61%

G08GTraffic control systems26%

G01SRadio direction-finding4%

G06FElectric digital data processing4%

G11BInformation storage based on relative movement between record carrier and transducer4%

PatentTitleYear

7,702,657'Portable information processor'2010 7,242,968'Communication terminal unit, connection control method and program for the method'2007 7,133,773'Map distribution system and terminal device used in the same'2006 7,082,366'Communication terminal apparatus, connection control method for the apparatus and program for the method'2006 6,957,144'Location confirmation system and information transmitting method for use in the system'2005 6,122,592'Navigation apparatus with enhanced positional display function'2000 6,023,652'Vehicular navigation apparatus'2000 5,938,719'Navigation apparatus with enhanced positional display function'1999 5,617,319'Navigation apparatus with enhanced positional display function'1997 5,463,605'Method of processing information of recording disc and apparatus for processing the same'1995 5,424,951'On-board navigation apparatus having user registering function'1995 5,396,430'On-board navigation apparatus'1995 5,396,431'Navigation system with position measuring device and aerial photographic storage capability'1995 5,394,332'On-board navigation system having audible tone indicating remaining distance or time in a trip'1995 5,383,128'Navigation device'1995 5,337,244'On-board navigation apparatus'1994 5,297,051'Map display device'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2000Patents assigned to PIONEER ELECTRONIC CORP (12)· patent assignee history

1994–2010Based in Kawagoe, JP· patent location history

1994–2007Based in Saitama, JP· patent location history

2005–2010Patents assigned to PIONEER CORP (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
PIONEER ELECTRONIC CORP	12	1994–2000
PIONEER CORP	5	2005–2010

Locations

Location	Patents	Span
Kawagoe, JP	11	1994–2010
Saitama, JP	6	1994–2007