Inventor

Harufumi Mandai

Inventor

Takatsuki, JP

Overview

1980–2004

Patent span

Electricity

Primary field (CPC H)

Patents· 81 as inventor

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

H01Qprimary

H01QAntennas, i.e. radio aerials27%

H05KPrinted circuits11%

Y10TTechnical subjects covered by former us classification9%

H03HImpedance networks, e.g. resonant circuits9%

H01GCapacitors7%

H01PWaveguides6%

C04BLime, magnesia5%

H04BTransmission4%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h104%

H01CResistors3%

PatentTitleYear

6,815,046'Method of producing ceramic multilayer substrate'2004 6,640,095'Frequency multiplier and wireless device incorporating same'2003 6,608,537'Band-pass filter'2003 6,556,109'Dual mode band pass filter'2003 6,525,626'Duplexer and mobile communication device using the same'2003 6,456,836'Frequency multiplier and wireless device incorporating same'2002 6,442,399'Mobile communication apparatus'2002 6,432,239'Method of producing ceramic multilayer substrate'2002 6,429,753'High-frequency filter, complex electronic component using the same, and portable radio apparatus using the same'2002 6,424,233'Complex electronic component with a first multilayer filter having a cavity in which a second filter is mounted'2002 6,342,858'Portable terminal device with chip antenna'2002 6,329,961'Antenna and resonant-frequency-adjustment method therefor'2001 6,288,680'Antenna apparatus and mobile communication apparatus using the same'2001 6,252,778'Complex electronic component'2001 6,222,489'Antenna device'2001 6,069,538'Impedance stabilizing unit and high-frequency module using the unit'2000 6,069,541'High-frequency filter, with an inductor for forming a pole, complex electronic component using the same, and portable radio apparatus using the same'2000 6,064,351'Chip antenna and a method for adjusting frequency of the same'2000 6,054,956'Antenna unit having power radiation conductor'2000 6,052,096'Chip antenna'2000 6,034,640'Antenna device'2000 6,028,554'Mobile image apparatus and an antenna apparatus used for the mobile image apparatus'2000 6,028,568'Chip-antenna'2000 5,999,146'Antenna device'1999 5,977,927'Chip antenna'1999 5,969,680'Antenna device having a radiating portion provided between a wiring substrate and a case'1999 5,936,593'Antenna apparatus having a spiral conductor and a coating layer'1999 5,933,116'Chip antenna'1999 5,914,691'Antenna apparatus having magnetic-current-type and electric-field type antenna'1999 5,912,647'Antenna unit'1999 5,909,198'Chip antenna'1999 5,903,242'Helical antenna and method of making same'1999 5,900,845'Antenna device'1999 5,898,413'Surface mount antenna'1999 5,892,490'Meander line antenna'1999 5,892,489'Chip antenna and method of making same'1999 5,874,926'Matching circuit and antenna apparatus'1999 5,870,065'Chip antenna having dielectric and magnetic material portions'1999 5,870,066'Chip antenna having multiple resonance frequencies'1999 5,815,052'High-frequency composite components comprising first and second circuits connected in parallel for multi-frequency systems'1998 5,798,737'Chip antenna'1998 5,797,084'Radio communication equipment'1998 5,777,587'Surface-mounted antenna'1998 5,770,986'Stripline filter with a stripline-formed parallel capacitor'1998 5,767,811'Chip antenna'1998 5,767,817'Antenna apparatus having chip antenna and capacitance generating device'1998 5,764,198'Chip antenna'1998 5,764,197'Chip antenna'1998 5,726,612'Chip-type electronic component'1998 5,585,810'Antenna unit'1996 5,537,123'Antennas and antenna units'1996 5,532,658'Mounting structure for electronic component'1996 5,530,919'Mobile communicator with means for attenuating transmitted output toward the user'1996 5,510,802'Surface-mountable antenna unit'1996 5,507,011'High-frequency switch including strip line and two switching diodes'1996 5,495,387'RC array'1996 5,473,293'High-frequency switch'1995 5,436,601'Laminated delay line'1995 5,414,402'Multi-layer substrate'1995 5,401,910'Electronic component'1995 5,384,434'Multilayer ceramic circuit board'1995 5,237,296'Composite electronic parts having open-circuits stub and short-circuited stub'1993 5,227,739'Voltage controlled oscillator having a resonator'1993 5,204,301'Non-reduction type dielectric ceramic composition'1993 5,187,455'Delay line device with adjustable time delay'1993 5,166,108'Low temperature-sintering porcelain components'1992 5,146,191'Delay line device and a method for producing the same'1992 5,107,394'Ceramic electronic part and producing method thereof'1992 5,093,986'Method of forming bump electrodes'1992 5,073,523'Dielectric ceramic composition'1991 5,009,744'Method of manufacturing laminated ceramic electronic component'1991 4,990,202'Method of manufacturing an LC composite component'1991 4,931,354'Multilayer printed circuit board'1990 4,912,450'Thermistor and method of producing the same'1990 4,803,453'Laminated transformer'1989 4,786,888'Thermistor and method of producing the same'1988 4,746,557'LC composite component'1988 4,543,553'Chip-type inductor'1985 4,533,931'Reduction reoxidation type semiconductor ceramic condenser'1985 4,323,617'Semiconductor ceramic composition for boundary layer capacitors'1982 4,191,665'Barium titanate semiconductor ceramic compositions'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–2004Patents assigned to MURATA MANUFACTURING CO (79)· patent assignee history

1980–1999Based in Nagaokakyo, JP· patent location history

1985–2004Based in Takatsuki, JP· patent location history

1985–1996Based in Osaka, JP· patent location history

1988–1996Based in Kyoto, JP· patent location history

1995Patents assigned to MURAKA MANUFACTURING CO LTD (1)· patent assignee history

1999Patents assigned to MURANA MFG CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MURATA MANUFACTURING CO	79	1980–2004
MURAKA MANUFACTURING CO LTD	1	1995
MURANA MFG CO LTD	1	1999

Locations

Location	Patents	Span
Takatsuki, JP	48	1985–2004
Nagaokakyo, JP	22	1980–1999
Kyoto, JP	9	1988–1996
Osaka, JP	2	1985–1996