Inventor

Sunao Takatori

Inventor

Tokyo, JP

Overview

1991–2013

Patent span

Physics

Primary field (CPC G)

Patents· 127 as inventor

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

G06Jprimary

G06JHybrid computing arrangements13%

G06NComputing arrangements based on specific computational models12%

G06GAnalogue computers9%

G11CStatic stores8%

H03HImpedance networks, e.g. resonant circuits8%

H04BTransmission8%

H03MCoding6%

G06VImage or video recognition or understanding6%

G06FElectric digital data processing4%

H03KPulse technique4%

PatentTitleYear

8,442,915'Modifiable authentication levels in authentication systems for transactions'2013 8,117,444'Host computer, mobile communication device, program, and recording medium'2012 8,032,460'Authentication managing apparatus, and shop communication terminal'2011 7,974,247'Communication terminal device and billing device'2011 7,969,918'Slave communication device for use in wireless LAN system and control method and control program of slave communication device'2011 7,944,865'Wireless LAN system and control method and control program of wireless LAN system'2011 7,869,430'Communication terminal device and billing device'2011 6,778,654'System for transfer control of telephone line'2004 6,763,231'Radio communication device, parent communication device, parent-child communication device and radio communication system'2004 RE037953'Filter circuit for communication'2002 6,421,027'Millimeter-wave signal transmission system communicatable within buildings'2002 6,212,219'Spread spectrum communication system'2001 6,169,771'Matched filter for spread spectrum communication systems and hybrid analog-digital transversal filter'2001 6,031,415'Matched filter circuit for spread spectrum communication'2000 5,974,038'Receiver for code division multiple access communication system'1999 5,958,002'Vector absolute--value calculation circuit'1999 5,930,290'Spread spectrum communications system for high-speed communications'1999 5,926,512'Matched filter circuit'1999 5,917,343'MOS inverter circuit'1999 5,910,948'Acquisition scheme and receiver for an asynchronous DS-CDMA cellular communication system'1999 5,872,466'Matched filter circuit'1999 5,864,312'Quantizing circuit'1999 5,862,070'Discrete cosine transformation circuit'1999 5,848,096'Communication method and system using different spreading codes'1998 5,844,937'Matched filter system'1998 5,841,315'Matched filter circuit'1998 5,835,387'Multiplication circuit'1998 5,815,021'Weight addition circuit'1998 5,815,812'Soft handoff system of spread spectrum communication'1998 5,811,859'MOS inverter forming method'1998 5,812,546'Demodulator for CDMA spread spectrum communication using multiple pn codes'1998 5,793,321'A/D converting circuit with quantizers and inverted amplifiers'1998 5,790,590'Matched filter circuit'1998 5,789,962'Multiplication circuit'1998 5,783,961'Inverted amplifying circuit'1998 5,781,584'Code acquisition and tracking circuit using switched matched filter and sliding correlators'1998 5,774,008'Computational circuit'1998 5,754,134'Apparatus for performing successive steps of simultaneous multi-level analog to digital conversion'1998 5,754,133'Register circuit having a plurality of thresholding circuits'1998 5,751,184'Low electrical power consumption filter circuit'1998 5,751,624'Complex number calculation circuit'1998 5,748,131'A/D converting circuit'1998 5,748,510'Multiplication circuit with serially connected capacitive couplings'1998 5,740,096'Filter circuit for communication'1998 5,737,368'Matched filter'1998 5,734,583'Capacitance forming method'1998 5,708,384'Computational circuit'1998 5,686,861'Filter circuit'1997 5,666,080'Computational circuit'1997 5,664,069'Data processing system'1997 5,661,482'Interface circuit having a plurality of thresholding circuits'1997 5,650,752'Amplifier circuit with parallel connected amplifiers'1997 5,646,753'Display system'1997 5,633,988'Adaptation method for data processing system'1997 5,631,941'Register circuit'1997 5,617,053'Computational circuit'1997 5,606,274'Sampling and holding circuit'1997 5,604,458'Scaler circuit'1997 5,602,499'Multistage switching circuit'1997 5,600,270'Computational circuit'1997 5,581,659'System for solving an adaptation problem by adjusting weights of a neural network based on changes in a cost function'1996 5,579,411'High-speed circuit for performing pattern matching of image data and the like suitable for large scale integration implementation'1996 5,568,080'Computational circuit'1996 5,565,809'Computational circuit'1996 5,563,812'Filter device including analog and digital circuitry'1996 5,563,544'Computational circuit'1996 5,553,196'Method for processing data using a neural network having a number of layers equal to an abstraction degree of the pattern to be processed'1996 5,550,950'Voice transfer system with low-error voice signal regeneration'1996 5,550,949'Method for compressing voice data by dividing extracted voice frequency domain parameters by weighting values'1996 5,537,348'Memory device'1996 5,528,700'Character recognition system based on a neural network'1996 5,521,543'Averaging circuit'1996 5,502,664'Filter device including SRAM and EEPROM devices'1996 5,500,810'Filter device with memory test circuit'1996 5,495,192'Sample hold circuit'1996 5,490,099'Method of multiplying an analog value by a digital value'1996 5,477,483'Memory device'1995 5,471,161'Circuit for calculating the minimum value'1995 5,469,102'Capacitive coupled summing circuit with signed output'1995 5,467,376'Incrementing and decrementing counter circuits'1995 5,467,030'Circuit for calculating a maximum value'1995 5,465,064'Weighted summing circuit'1995 5,463,717'Inductively coupled neural network'1995 5,457,417'Scaler circuit'1995 5,455,581'Digital-to-analog converter employing a common trigger and reference signal'1995 5,452,373'Image verification method'1995 5,452,336'Memory device for recording a time factor'1995 5,450,023'Interface circuit using a limited number of pins in LSI applications'1995 5,440,156'Metal oxide semiconductor field effect transistor cell adaptable for use in an integrator'1995 5,440,605'Multiplication circuit'1995 5,434,529'Signal integration circuit'1995 5,430,829'Learning method for a data processing system'1995 5,424,973'Apparatus and method for performing small scale subtraction'1995 5,424,965'Multiplication circuit for multiplying analog values'1995 5,420,806'Multiplication circuit for multiplying analog signals by digital signals'1995 5,420,807'Multiplication circuit for multiplying analog inputs by digital inputs'1995 5,416,439'Analog calculating'1995 5,416,370'Multiplication circuit'1995 5,416,850'Associative pattern conversion system and adaption method thereof'1995 5,408,142'Hold circuit'1995 5,408,422'Multiplication circuit capable of directly multiplying digital data with analog data'1995 5,406,131'Exponential circuit'1995 5,396,442'Multiplication circuit for multiplying analog inputs by digital inputs'1995 5,396,446'Digital filter circuit that minimizes holding errors transmitted between holding circuits'1995 5,394,510'Neural network-type data processing system recognizing a predetermined shape using inhibitory connections'1995 5,394,107'Absolute value circuit'1995 5,388,063'Filter circuit with switchable finite impulse response and infinite impulse response filter characteristics'1995 5,381,375'Memory device'1995 5,381,352'Circuit for multiplying an analog value by a digital value'1995 5,373,464'CCD array memory device having dual, independent clocks of differing speeds'1994 5,363,205'Image compressing method compressing an image into a compressed image and error coefficients'1994 5,361,219'Data circuit for multiplying digital data with analog'1994 5,361,328'Data processing system using a neural network'1994 5,359,565'Optical memory'1994 5,355,438'Weighting and thresholding circuit for a neural network'1994 5,355,437'Neural network architecture for pattern recognition'1994 5,343,419'Analog calculation circuit using timers'1994 5,319,317'Voltage follower circuit'1994 5,287,431'Neural network using liquid crystal for threshold and amplifiers for weights'1994 5,259,065'Data processing system'1993 5,257,342'Learning method for a data processing system with neighborhoods'1993 5,239,619'Learning method for a data processing system having a multi-layer neural network'1993 5,231,678'Configuration recognition system calculating a three-dimensional distance to an object by detecting cross points projected on the object'1993 5,195,171'Data processing system'1993 5,185,816'Method of selecting characeteristics data for a data processing system'1993 5,136,653'Acoustic recognition system using accumulate power series'1992 5,040,230'Associative pattern conversion system and adaptation method thereof'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1995Patents assigned to EZEL INC (6)· patent assignee history

1991–2013Based in Tokyo, JP· patent location history

1993–2004Patents assigned to YOZAN INC (113)· patent assignee history

1995–2001Patents assigned to SHARP KK (53)· patent assignee history

1998–2000Patents assigned to NIPPON TELEGRAPH & TELEPHONE (7)· patent assignee history

2011–2013Patents assigned to DAITA FRONTIER FUND LLC (6)· patent assignee history

2011Based in Setagaya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
YOZAN INC	113	1993–2004
SHARP KK	53	1995–2001
NIPPON TELEGRAPH & TELEPHONE	7	1998–2000
DAITA FRONTIER FUND LLC	6	2011–2013
EZEL INC	6	1991–1995

Locations

Location	Patents	Span
Tokyo, JP	126	1991–2013
Setagaya, JP	1	2011