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NIIGATA SEIMITSU CO LTD

Overview
  • Total Patents
    446
About

NIIGATA SEIMITSU CO LTD has a total of 446 patent applications. Its first patent ever was published in 1994. It filed its patents most often in WIPO (World Intellectual Property Organization), United States and Taiwan. Its main competitors in its focus markets basic communication technologies, telecommunications and semiconductors are NIIGATA SEIMITSU KK, SKYWORKS SOLUTIONS INC and INTEGRANT TECHNOLOGIES INC.

Patent filings per year

Chart showing NIIGATA SEIMITSU CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Miyagi Hiroshi 205
#2 Ikeda Takeshi 152
#3 Okamoto Akira 77
#4 Ishiguro Kazuhisa 34
#5 Hiroshi Miyagi 24
#6 Koyanagi Yukio 23
#7 Karasudani Munehiro 21
#8 Toraichi Kazuo 19
#9 Kitamura Mamoru 17
#10 Narita Hiromitsu 16

Latest patents

Publication Filing date Title
US2009033434A1 Oscillation circuit
WO2007129384A1 Lc noise filter
WO2007108138A1 Composite band-pass filter and method of filtering quadrature signals
WO2006100914A1 Portable device with built-in fm transmitter
GB0716779D0 Portable apparatus with built-in FM transmitter
WO2006114941A1 Clock generating circuit and audio system
WO2006100913A1 Portable device with built-in fm transmitter
CN101142750A Portable apparatus with built-in fm transmitter
US2009011729A1 Fm transmitter
WO2006095581A1 Semiconductor device
TW200701760A Semiconductor device
EP1887701A1 Frequency synthesizer and charge pump circuit used therein
WO2006117894A1 Automatic gain control apparatus
WO2006054576A1 Vhf band receiver
CN101061691A Mobile telephone with am radio
WO2006054578A1 Fm transmitter
WO2006054577A1 Vhf band transmitter
US2008102780A1 Mobile Device Equipped With Am Radio
CN101164236A Frequency synthesizer and charge pump circuit used for the same
WO2006048981A1 Image processor