LexDanaLexDanabeta
Inventor

Atsushi Nakagawa

Inventor
Kanagawa, JP

Overview

98→
Patents
1980–2019
Patent span
Electricity
Primary field (CPC H)

Patents· 98 as inventor

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

G11Cprimary
G11CStatic stores15%
H10DInorganic electric semiconductor devices8%
C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture5%
G03GElectrography4%
G06KGraphical data reading4%
H03KPulse technique4%
H04NPictorial communication, e.g. television4%
Y10TTechnical subjects covered by former us classification4%
H10NElectric solid-state devices not otherwise provided for3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
PatentTitleYear
10,437,139Projector apparatus, projection method, and storage medium201910,304,171Projection control device, projection control method, and non-transitory storage medium20199,658,610'Displacement and position measurement in machine tool'20179,570,256'Gas circuit breaker'20179,528,848'Method of displaying point on navigation map'20168,999,466'Multilayer stretched polyamide film'20158,938,198'Wireless communication device and medium processing apparatus'20158,885,188'Communication system for transmitting multiple pulse signals, transmission circuit, reception circuit, and image forming apparatus'20148,691,394'Heat shrinkable multilayer film and heat shrinkable label'20148,631,727'Machine tool'20148,342,517'Image forming apparatus'20138,049,911'Image forming apparatus including image abnormality detection, method of controlling the same, and program for implementing the method'20117,879,145'Inorganic composition and products and manufacturing process'20117,864,598'Dynamic random access memory device suppressing need for voltage-boosting current consumption'20117,860,457'Wireless communication device and medium processing apparatus'20107,852,704'Semiconductor storage device'20107,796,928'Image forming apparatus'20107,759,899'Battery pack, and assembly of battery pack and motor-driven tool or charger'20107,694,962'Sheet conveying apparatus and image forming apparatus'20107,692,978'Semiconductor device that uses a plurality of source voltages'20107,693,487'Radio communication apparatus and radio communication method'20107,677,558'Sheet conveying device and image forming apparatus'20107,663,945'Semiconductor memory with a delay circuit'20107,652,943'Semiconductor memory device, test circuit and test method'20107,643,783'Image forming apparatus employing an electrophotographic method'20107,638,202'Stretched polyamide films'20097,635,877'Nitride semiconductor device and manufacturing method thereof'20097,609,983'Image forming apparatus and sheet heating apparatus'20097,601,573'Method for producing nitride semiconductor device'20097,586,511'Frequency modulation apparatus and frequency modulation method'20097,579,730'Motor and manufacturing method thereof'20097,528,350'Process for producing PTC element/metal lead element connecting structure and PTC element for use in the process'20097,515,925'Wireless communication device for periodically controlling a carrier wave to establish a good communication state with a communication object'20097,466,609'Semiconductor memory device and semiconductor memory device control method'20087,437,085'Fixing apparatus and image forming apparatus'20087,397,710'Internal voltage level control circuit and semiconductor memory device as well as method of controlling the same'20087,375,447'Power tool'20087,352,017'Nitride semiconductor device and manufacturing method thereof'20087,335,502'Chlorohydrin and hydroxycarboxylic ester asymmetric hydrolase gene'20087,330,006'Power tool'20087,304,330'Nitride semiconductor device'20077,301,830'Semiconductor memory device and semiconductor device and semiconductor memory device control method'20077,247,468'Method for producing optically active 1,2-diols by microorganism culturing'20077,235,399'Method for producing optically active 3-chloro-2-methyl-1, 2-propanediol taking advantage of microorganism'20077,227,792'Internal voltage level control circuit and semiconductor memory device as well as method of controlling the same'20077,224,734'Video data encoding apparatus and method for removing a continuous repeat field from the video data'20077,145,830'Semiconductor memory device'20067,129,967'Frequency modulation apparatus and frequency modulation method'20067,112,428'Chlorohydrin and hydroxycarboxylic ester asymmetric hydrolase gene'20067,089,351'Semiconductor memory device for preventing a late write from disturbing a refresh operation'20067,054,224'Non-synchronous semiconductor memory device having page mode read/write'20067,006,401'Semiconductor storage device and refresh control method thereof'20067,002,854'Internal voltage level control circuit and semiconductor memory device as well as method of controlling the same'20066,947,345'Semiconductor memory device'20056,944,081'Semiconductor storage and its refreshing method'20056,928,020'Semiconductor memory device'20056,922,371'Semiconductor storage device'20056,879,537'Semiconductor storage device having a plurality of operation modes'20056,876,592'Semiconductor memory device'20056,856,566'Timer circuit and semiconductor memory incorporating the timer circuit'20056,834,020'Semiconductor storage device'20046,804,474'Image forming apparatus'20046,727,088'Process for preparation of (R)-1, 2-propanediol by microbes'20046,704,523'Sheet detecting apparatus and image forming apparatus equipped with sheet detecting apparatus'20046,686,647'Gunn diode and method of manufacturing the same'20046,675,628'Punch press'20046,638,759'Process for preparation of optically active 1,2-diols by cultivating microorganisms'20036,615,697'Machine tool'20036,614,760'ATM transmission equipment'20036,603,815'Video data processing apparatus, video data encoding apparatus, and methods thereof'20036,534,885'Adapter for DC power source unit'20036,514,832'Gunn diode, NRD guide Gunn oscillator, fabricating method of Gunn diode and structure for assembly of the same'20036,495,932'DC power source unit'20026,456,559'Semiconductor integrated circuit'20026,426,511'Gunn diode, NRD guide gunn oscillator, fabricating method of gunn diode and structure for assembly of the same'20026,406,904'Process for preparing optically active 4-halogeno-1,3-butanediol and its derivative using pseudomonas'20026,392,394'Step-down circuit for reducing an external supply voltage'20026,369,663'NRD guide Gunn oscillator'20026,344,658'Gunn diode, NRD guide gunn oscillator, fabricating method of gunn diode and structure for assembly of the same'20026,345,334'High speed semiconductor memory device capable of changing data sequence for burst transmission'20026,316,233'Process for preparing (S)-3-halogeno-1,2-propanediol by microorganism'20016,282,133'Semiconductor memory device having a delay circuit for generating a read timing'20016,172,860'DC power source unit alarming before electrically powered tool is overheated and stopping power supply thereafter'20015,974,918'Screw driving device'19995,953,972'Punch press drive device'19995,831,458'Output circuit having BiNMOS inverters'19985,739,006'Process of feeding juvenile fish with astaxanthin-containing zooplankton'19985,429,957'Method of manufacturing an heterojunction bipolar transistor'19955,371,389'Heterojunction bipolar transistor with base layer having graded bandgap'19945,345,097'Heterojunction bipolar transistor including collector region of InP and method of fabricating the same'19945,329,145'Heterojunction bipolar transistor and its integration method'19945,166,081'Method of producing a bipolar transistor'1992D0330152'Portable electric screw driver'19925,138,916'Power operated screwdriver'19924,965,650'Bipolar transistor and method of producing the same'19904,922,663'Sandpaper clamp mechanism for orbital finishing sander'19904,305,963'Powdered malt wort beverage product'19814,226,816'Method of manufacturing a clutch facing of the type used for automotive automatic transmissions'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2010Patents assigned to HITACHI KOKI KK (10)· patent assignee history
1998–2019Based in Tokyo, JP· patent location history
2001–2008Patents assigned to DAISO CO LTD (8)· patent assignee history
2001–2008Based in Osaka, JP· patent location history
2002–2009Patents assigned to NEW JAPAN RADIO CO LTD (9)· patent assignee history
2002–2009Based in Kamifukuoka, JP· patent location history
2003–2010Based in Kanagawa, JP· patent location history
2004–2010Patents assigned to NEC ELECTRONICS CORP (20)· patent assignee history
2004–2014Patents assigned to CANON KK (13)· patent assignee history
2008–2014Based in Toride, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NEC ELECTRONICS CORP202004–2010
CANON KK132004–2014
HITACHI KOKI KK101990–2010
NEW JAPAN RADIO CO LTD92002–2009
DAISO CO LTD82001–2008
Locations
LocationPatentsSpan
Kanagawa, JP162003–2010
Tokyo, JP141998–2019
Toride, JP92008–2014
Kamifukuoka, JP92002–2009
Osaka, JP82001–2008