Ichihara; Masaki

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ichihara; Masaki.The latest application filed is for "orthogonal frequency division multiplex modem circuit".

Company Profile

0.49.23

Ichihara; Masaki - Tokyo JP
Ichihara; Masaki - Minato-ku JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Distortion control device and method Grant 8,995,565 - Ichihara March 31, 2	2015-03-31
Server, mobile communication system, and data updating method in the same Grant 8,620,274 - Ichihara December 31, 2	2013-12-31
OFDM receiving device and OFDM receiving method Grant 8,396,176 - Ichihara March 12, 2	2013-03-12
Orthogonal frequency division multiplex modem circuit Grant 8,335,153 - Ichihara , et al. December 18, 2	2012-12-18
Receiving amplitude correction circuit, receiving amplitude correction method, and receiver using the same Grant 8,050,367 - Ichihara November 1, 2	2011-11-01
Orthogonal Frequency Division Multiplex Modem Circuit App 20110038403 - ICHIHARA; Masaki ; et al.	2011-02-17
Diversity receiver and gain adjusting method therefor Grant 7,856,216 - Ichihara December 21, 2	2010-12-21
Orthogonal frequency division multiplex modem circuit Grant 7,843,803 - Ichihara , et al. November 30, 2	2010-11-30
Ofdm Receiving Device, Ofdm Recieiving Method, Communication System, And Control Program For Ofdm Receiving Device App 20100296609 - Ichihara; Masaki	2010-11-25
Multi-band wireless transceiver and method of controlling the same Grant 7,664,475 - Ichihara February 16, 2	2010-02-16
Receiving Amplitude Correction Circuit, Receiving Amplitude Correction Method, And Receiver Using The Same App 20090285340 - Ichihara; Masaki	2009-11-19
Distortion Control Device and Method App 20090202017 - Ichihara; Masaki	2009-08-13
Diversity Receiver And Gain Adjusting Method Therefor App 20090011731 - Ichihara; Masaki	2009-01-08
Method and apparatus for adjusting transmission power of CDMA terminal Grant RE40,553 - Ichihara October 28, 2	2008-10-28
Mobile terminal device and positional information system Grant 7,330,729 - Niwa , et al. February 12, 2	2008-02-12
Base band circuit of receiver and low cut-off frequency control method Grant 7,257,178 - Ichihara August 14, 2	2007-08-14
Frequency correction method and apparatus for correcting secular change Grant 7,228,117 - Ichihara June 5, 2	2007-06-05
Amplitude deviation correction circuit Grant 7,206,360 - Ichihara April 17, 2	2007-04-17
Baseband circuit incorporated in direct conversion receiver free from direct-current offset voltage without change of cut-off frequency Grant 7,127,224 - Ichihara October 24, 2	2006-10-24
Orthogonal frequency division multiplex modem circuit App 20060209673 - Ichihara; Masaki ; et al.	2006-09-21
Orthogonal frequency division multiplex modem circuit Grant 7,099,268 - Ichihara , et al. August 29, 2	2006-08-29
Compound information terminal, mobile communications system and control method thereof Grant 7,069,060 - Kimata , et al. June 27, 2	2006-06-27
Multi-band wireless transceiver and method of controlling the same App 20060052131 - Ichihara; Masaki	2006-03-09
Direct conversion receiver and transceiver Grant 7,006,814 - Ichihara February 28, 2	2006-02-28
Frequency shifting circuit and method Grant 6,922,451 - Ichihara July 26, 2	2005-07-26
Information terminal apparatus having a variable directional antenna and control method thereof Grant 6,915,120 - Ichihara July 5, 2	2005-07-05
Server, mobile communication system, and data updating method in the same App 20050124323 - Ichihara, Masaki	2005-06-09
Frequency correction method and apparatus for correcting secular change App 20040180630 - Ichihara, Masaki	2004-09-16
AGC circuit Grant 6,782,061 - Ichihara August 24, 2	2004-08-24
Base band circuit of receiver and low cut-off frequency control method App 20030142767 - Ichihara, Masaki	2003-07-31
Mobile terminal device and positional information system App 20030129995 - Niwa, Satoshi ; et al.	2003-07-10
Mobile station with transmission power control system Grant 6,591,089 - Ichihara July 8, 2	2003-07-08
Predistorter Grant 6,587,513 - Ichihara July 1, 2	2003-07-01
PLL circuit having a variable output frequency Grant 6,587,005 - Ichihara July 1, 2	2003-07-01
Amplitude calculation circuit Grant 6,570,914 - Ichihara May 27, 2	2003-05-27
Agc Circuit App 20030086513 - ICHIHARA, MASAKI	2003-05-08
Method and apparatus for adjusting transmission power of a CDMA terminal Grant 6,553,018 - Ichihara April 22, 2	2003-04-22
Compound information terminal, mobile communications system and control method thereof App 20030045333 - Kimata, Yusuke ; et al.	2003-03-06
Password updating apparatus and recording medium used therefor Grant 6,496,937 - Ichihara December 17, 2	2002-12-17
Information terminal apparatus having a variable directional antenna and control method thereof App 20020132581 - Ichihara, Masaki	2002-09-19
Transmission power control device capable of decreasing current consumption Grant 6,434,373 - Ichihara August 13, 2	2002-08-13
System for providing charge between communication devices Grant 6,424,124 - Ichihara , et al. July 23, 2	2002-07-23
PLL circuit having a variable output frequency App 20020089384 - Ichihara, Masaki	2002-07-11
Method and circuit for controlling baseband gain App 20020047744 - Ichihara, Masaki	2002-04-25
Baseband circuit incorporated in direct conversion receiver free from direct-current offset voltage without change of cut-off frequency App 20020037706 - Ichihara, Masaki	2002-03-28
Orthogonal frequency division multiplex modem circuit App 20010053124 - Ichihara, Masaki ; et al.	2001-12-20
Direct conversion receiver and transceiver App 20010051507 - Ichihara, Masaki	2001-12-13
Transmission power controller for use in mobile communication terminal equipment Grant 6,330,455 - Ichihara December 11, 2	2001-12-11
Rewarding method corresponding to object selection on web page and server for use with rewarding method App 20010029466 - Ichihara, Masaki	2001-10-11
Amplitude deviation correction circuit App 20010022821 - Ichihara, Masaki	2001-09-20
Transmission Power Control Device Capable Of Varying A Transmission Power At A Wide Range App 20010014587 - ICHIHARA, MASAKI	2001-08-16
Mobile communication terminal for rapid adjustment of a reference frequency to a target frequency Grant 6,275,699 - Ichihara August 14, 2	2001-08-14
Charging system for portable equipment App 20010005126 - Ichihara, Masaki ; et al.	2001-06-28
CDMA communication system Grant 6,097,715 - Ichihara August 1, 2	2000-08-01
Transmisson diversity system Grant 5,809,019 - Ichihara , et al. September 15, 1	1998-09-15
Transmitter and method for transmitting a modulated wave with variable envelope Grant 5,784,412 - Ichihara July 21, 1	1998-07-21
Circuit for preventing overdischarge of rechargeable battery pack consisting of a plurality of rechargeable batteries Grant 5,705,912 - Ichihara January 6, 1	1998-01-06
Digital mobile radio communication system Grant 5,640,413 - Ichihara June 17, 1	1997-06-17
Digital radio receiver having limiter amplifiers and logarithmic detector Grant 5,533,064 - Ichihara July 2, 1	1996-07-02
Signal oscillator, FM modulation circuit using the same, and FM modulation method Grant 5,521,559 - Ichihara May 28, 1	1996-05-28
Time constant detecting circuit and time constant adjusting circuit Grant 5,466,976 - Ichihara November 14, 1	1995-11-14
Ripple-free phase detector using two sample-and-hold circuits Grant 5,410,195 - Ichihara April 25, 1	1995-04-25
Quadrature modulator having circuit for correcting phase error Grant 5,355,101 - Ichihara , et al. October 11, 1	1994-10-11
High-speed A/D conversion using a series of one-bit conversion stages Grant 5,283,583 - Ichihara February 1, 1	1994-02-01
Arrangement for converting binary input signal into corresponding in-phase and quadrature phase signals Grant 5,255,288 - Ichihara October 19, 1	1993-10-19
Output level control circuit for use in RF power amplifier Grant 5,196,806 - Ichihara March 23, 1	1993-03-23
Phase lock loop circuit with a subsidiary loop filter Grant 5,170,130 - Ichihara December 8, 1	1992-12-08
Device operable like an automatic level control circuit for decoding a multivalued signal Grant 4,841,301 - Ichihara June 20, 1	1989-06-20
Power supply systems for use in radio communication systems Grant 4,509,199 - Ichihara April 2, 1	1985-04-02

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