Inventor

Koichi Yokosawa

Inventor

Kokubunji, JP

Overview

1989–2008

Patent span

Physics

Primary field (CPC G)

Patents· 15 as inventor

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

G01Rprimary

G01RMeasuring electric variables42%

A61BDiagnosis26%

G01NInvestigating or analysing materials by determining their chemical or physical properties11%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%

G01SRadio direction-finding5%

G08BSignalling systems, e.g. personal calling systems5%

PatentTitleYear

7,345,590'Wireless terminal with gas leakage detection function, gas leakage detection system using the same, and gas leakage notification method'2008 7,242,309'Gas detection system'2007 6,853,185'Magnetic field measurement system'2005 6,815,949'Apparatus for measuring a magnetic field'2004 6,745,063'Biomagnetic field measuring apparatus'2004 6,681,131'Apparatus for measuring bio-magnetic fields'2004 6,665,552'Gradiometer integrating pickup coils and magnetic field measurement system'2003 6,528,994'Magnetic field measurement apparatus'2003 6,261,232'Continuous wave transmission/reception type ultrasonic imaging device and ultrasonic probe'2001 5,955,400'SQUID integrated with pickup coils'1999 5,829,439'Needle-like ultrasonic probe for ultrasonic diagnosis apparatus, method of producing same, and ultrasonic diagnosis apparatus using same'1998 5,166,614'Integrated-type SQUID magnetometer having a magnetic shield, and a multichannel SQUID magnetometer using the same'1992 5,021,739'Superconductor type radio frequency with adjustable inductance magnetic flux measuring circuit'1991 4,913,883'Particle agglutination immunoassay apparatus'1990 4,875,010'Circuit for detecting AC magnetic field due to magnetic resonance with a variable resistance for noise suppression'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2008Patents assigned to HITACHI LTD (13)· patent assignee history

1989–2008Based in Kokubunji, JP· patent location history

1998–2001Patents assigned to HITACHI MEDICAL CORP (2)· patent assignee history

2001–2004Based in Kodaira, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	13	1989–2008
HITACHI MEDICAL CORP	2	1998–2001

Locations

Location	Patents	Span
Kokubunji, JP	9	1989–2008
Kodaira, JP	6	2001–2004