Inventor

Hiroki Yamashita

Inventor

Hachioji, JP

Overview

1986–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 97 as inventor

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

H04Lprimary

H04LTransmission of digital information, e.g. telegraphic communication10%

H01LSemiconductor devices9%

G03GElectrography8%

H03KPulse technique8%

H10BElectronic memory devices8%

H10DInorganic electric semiconductor devices7%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables6%

H03FAmplifiers5%

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

H04BTransmission4%

PatentTitleYear

11,101,285Semiconductor memory device2021 10,888,298Radiographic imaging system, medical image capturing system, medical image capturing method, and storage medium2021 10,868,295Positive electrode active material complex for lithium-ion secondary battery, secondary battery using same, and method for producing positive electrode active material complex for lithium-ion secondary battery2020 10,763,101Method of manufacturing semiconductor device, substrate processing apparatus, and recording medium2020 10,720,325Method of manufacturing semiconductor device, substrate processing apparatus and non-transitory computer-readable recording medium2020 10,700,741Electronic control apparatus provided with power line communication function, actuator, electronic control system, and automobile using same2020 10,601,042Secondary battery positive electrode active material and method for producing same2020 10,593,686Non-volatile memory device2020 10,498,395Power line communication apparatus and electronic control apparatus including power line communication apparatus2019 10,468,429Non-volatile memory device2019 10,461,330Positive-electrode active material for secondary cell, and method for manufacturing same2019 9,978,767Non-volatile memory device2018 9,966,385Semiconductor memory device2018 9,941,292Semiconductor memory device and method for manufacturing same2018 9,929,043'Semiconductor memory device and method for manufacturing the same'2018 9,866,185'Optical transmission circuit with upper and lower threshold control'2018 9,786,680'Semiconductor device'2017 9,773,797'Non-volatile memory device'2017 9,739,622'System and method for selecting path according to selection conditions'2017 9,704,877'Semiconductor memory device'2017 9,683,195'Viscosity index improver and lubricating oil composition'2017 9,627,391'Non-volatile memory device'2017 9,502,455'Optical apparatus having resin encased stacked optical and semiconductor devices'2016 9,443,793'Semiconductor device'2016 9,123,823'Nonvolatile semiconductor memory device'2015 9,059,303'Nonvolatile semiconductor memory device and method for manufacturing same'2015 9,054,655'Transimpedance amplifier'2015 8,993,952'Transimpedance amplifier, semiconductor device, and optical module to include an adding circuit for adding first and second current variation'2015 8,871,602'Method for manufacturing molecular memory device'2014 8,772,880'Semiconductor integrated circuit device'2014 8,674,725'Transmitter circuit'2014 8,503,595'Data judgment/phase comparison circuit'2013 8,503,888'Optical communication module and optical communication device'2013 8,493,103'Output driver circuit'2013 8,445,832'Optical communication device'2013 8,358,708'Low offset input circuit and transmission system with the input circuit'2013 8,311,157'Signal recovery circuit'2012 8,253,461'Waveform equalization circuit with pulse width modulation'2012 8,149,973'Clock recovery circuit'2012 8,040,776'Pulse amplitude modulation circuit with pulse width equalization'2011 8,037,543'Image processing apparatus, image processing method, computer program and computer-readable recording medium'2011 8,005,130'Transmitter and receiver using forward clock overlaying link information'2011 7,899,144'Semiconductor integrated circuit device'2011 7,830,167'Pre-emphasis circuit'2010 7,795,944'Low-offset input circuit including amplifier circuit to correct circuit characteristics to cancel offset of the input circuit'2010 7,778,922'Account settlement method in online shopping'2010 7,768,330'Logic circuit'2010 7,764,090'Semiconductor device having transmitter/receiver circuit between circuit blocks'2010 7,742,983'Account settlement method in online shopping'2010 7,716,747'Image processing apparatus, image processing method, computer program and computer-readable recording medium'2010 7,714,644'Amplifier circuit'2010 7,649,381'Level conversion circuit'2010 7,535,261'Logic circuit'2009 7,474,720'Clock and data recovery method and digital circuit for the same'2009 7,457,850'Information server system'2008 7,417,818'Magnetic recording device'2008 7,373,114'Signal transmission circuit, signal output circuit and termination method of signal transmission circuit'2008 7,319,575'Semiconductor device'2008 7,216,269'Signal transmit-receive device, circuit, and loopback test method'2007 7,183,615'Nonvolatile semiconductor memory and manufacturing method for the same'2007 7,046,468'Semiconductor integrated circuit and magnetic storage device using the same'2006 7,034,568'Logic circuit'2006 6,938,098'Method for providing digital contents with offering access incentive'2005 6,927,139'Nonvolatile semiconductor memory and manufacturing method for the same'2005 6,913,444'Thin-form centrifugal fan'2005 6,877,024'Network system and method for providing voice information to participants in a chat session set at an audible level corresponding to the number of participants currently logged in the chat session'2005 6,779,018'Counted time period certifying system'2004 6,768,387'Voltage controlled oscillator and PLL circuit using the same'2004 6,529,522'Communication apparatus with digital interface'2003 6,330,703'Method and circuit for determining the power consumption requirements for a semiconductor logic circuit and designing the circuit accordingly'2001 6,202,168'Device for regulating variation of delay time for data transfer between logic circuits'2001 6,192,210'Belt drive device and image forming apparatus equipped with said device'2001 6,191,647'Low noise integrated circuit device for reducing a noise on LSI power supply nets to supply electric charges required to operate IC'2001 5,852,765'Image forming system and finisher'1998 5,822,672'Copying machine'1998 5,599,008'Finisher with a punching function and a stapling function, and sheet punching/stapling method'1997 5,587,782'Copying machine for copying documents in two-in-one mode'1996 5,521,536'Integrated circuit device having different signal transfer circuits for wirings with different lengths'1996 5,509,645'Sheet sorter with hole punching assembly'1996 5,426,784'Serial to parallel data converting circuit'1995 5,396,198'Electronic circuit device having a series connection of resistor and capacitance as a noise reducing circuit connected to a power source wiring'1995 5,281,865'Flip-flop circuit'1994 5,241,355'Image forming apparatus for processing sheets of image-bearing copy paper'1993 5,151,735'Sheet storing apparatus with a plurality of trays'1992 5,139,254'Sheet storing apparatus'1992 5,083,761'Sheet storing apparatus for sheets ejected from a copying machine'1992 5,053,831'Image forming apparatus having a finisher'1991 5,028,965'Copying system having a sheet refeed device'1991 5,021,686'Logic circuit'1991 5,012,297'Sheet storing apparatus provided for a copying machine'1991 4,993,697'Copy sheet stack apparatus'1991 4,981,293'Sheet storing apparatus provided for a copying machine'1991 4,973,036'Sheet handling apparatus provided for a copying machine'1990 4,958,820'Sheet storing apparatus for copying machine'1990 4,954,866'Semiconductor integrated circuit memory'1990 4,946,153'Paper handling apparatus with a paper stapling function'1990 4,586,169'Semiconductor memory circuit and large scale integrated circuit using the same'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2018Patents assigned to HITACHI LTD (39)· patent assignee history

1990–1993Patents assigned to MINOLTA CAMERA KK (11)· patent assignee history

1990–2015Based in Hachioji, JP· patent location history

1990–2016Based in Osaka, JP· patent location history

1992–2001Based in Okazaki, JP· patent location history

2005–2017Patents assigned to TOSHIBA KK (7)· patent assignee history

2005–2020Based in Tokyo, JP· patent location history

2012–2015Patents assigned to YAMASHITA HIROKI (12)· patent assignee history

2017–2021Patents assigned to TOSHIBA MEMORY CORP (9)· patent assignee history

2017–2021Based in Yokkaichi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	39	1986–2018
YAMASHITA HIROKIself	12	2012–2015
MINOLTA CAMERA KK	11	1990–1993
TOSHIBA MEMORY CORP	9	2017–2021
TOSHIBA KK	7	2005–2017

Locations

Location	Patents	Span
Hachioji, JP	36	1990–2015
Yokkaichi, JP	11	2017–2021
Osaka, JP	10	1990–2016
Okazaki, JP	9	1992–2001
Tokyo, JP	6	2005–2020