Inventor

Hisamatsu Nakano

Inventor

Kodaira, JP

Overview

1988–2013

Patent span

Electricity

Primary field (CPC H)

Patents· 25 as inventor

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

H01Qprimary

H01QAntennas, i.e. radio aerials81%

G02BOptical elements, systems or apparatus7%

H05KPrinted circuits7%

Y10TTechnical subjects covered by former us classification4%

PatentTitleYear

8,564,500'Spiral antenna'2013 8,193,989'Antenna apparatus'2012 8,094,088'Antenna apparatus'2012 7,864,095'Wave absorber and manufacturing method of wave absorber'2011 7,777,664'Wave absorber'2010 7,463,213'Antenna unit having a single antenna element and a periodic structure upper plate'2008 7,091,909'Antenna unit adaptable to a wideband'2006 7,081,859'Antenna unit having a wide band'2006 7,031,569'Optical multi-demultiplexer'2006 7,026,999'Pattern antenna'2006 7,019,698'Gap feeding type antenna unit'2006 6,999,029'Antenna apparatus including a flat-plate radiation element and improved in radiation characteristic'2006 6,930,647'Semicircular radial antenna'2005 6,906,683'Circular polarized wave reception antenna'2005 6,898,349'Optical multi-demultiplexer'2005 6,774,849'Invented-F plate antenna and wireless communication device'2004 6,639,565'Semicircular radial antenna'2003 6,559,804'Electromagnetic coupling type four-point loop antenna'2003 6,535,167'Laminate pattern antenna and wireless communication device equipped therewith'2003 6,342,856'Method of feeding flat antenna, and flat antenna'2002 6,018,327'Single-wire spiral antenna'2000 5,923,295'Circular polarization microstrip line antenna power supply and receiver loading the microstrip line antenna'1999 5,838,283'Loop antenna for radiating circularly polarized waves'1998 5,453,755'Circularly-polarized-wave flat antenna'1995 4,742,359'Antenna system'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2012Based in Tokyo, JP· patent location history

1995–2012Based in Kodaira, JP· patent location history

1999–2012Patents assigned to MITSUMI ELECTRIC CO LTD (9)· patent assignee history

2003–2013Patents assigned to NAKANO HISAMATSU (5)· patent assignee history

2005–2012Patents assigned to HITACHI INT ELECTRIC INC (2)· patent assignee history

2006Patents assigned to HISAMATSU NAKANO (2)· patent assignee history

2010–2011Patents assigned to MITSUBISHI GAS CHEMICAL CO (2)· patent assignee history

2013Based in Koganei, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUMI ELECTRIC CO LTD	9	1999–2012
NAKANO HISAMATSUself	5	2003–2013
HISAMATSU NAKANOself	2	2006
HITACHI INT ELECTRIC INC	2	2005–2012
MITSUBISHI GAS CHEMICAL CO	2	2010–2011

Locations

Location	Patents	Span
Kodaira, JP	12	1995–2012
Tokyo, JP	12	1988–2012
Koganei, JP	1	2013