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Inventor

Masaaki Ishikawa

Inventor
Tokyo, JP

Overview

61→
Patents
1982–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 61 as inventor

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

H04Nprimary
H04NPictorial communication, e.g. television31%
B60QArrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general10%
F21SNon-portable lighting devices8%
G03GElectrography6%
G06TImage data processing or generation, in general6%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them5%
G09GArrangements or circuits for control of indicating devices using static means to present variable information4%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables3%
C22CAlloys3%
H05KPrinted circuits3%
PatentTitleYear
10,602,102Projection system, image processing apparatus, projection method202010,091,475Projection system, image processing apparatus, and calibration method20189,818,377'Projection system, image processing apparatus, and correction method'20179,781,395'Projection system, image processing apparatus, and computer-readable storage medium'20179,737,573'Preventive and/or ameliorative agent for diseases, stamina enhancement agent, anti-fatigue agent, and pharmaceutical and food and drink using them'20179,661,257'Projection system, image processing device, and projection method'20179,532,018'Projection system, device and method for the output of calibration projection scenes'20169,435,505'Tilt sensor housing case and vehicle lamp system'20169,348,212'Image projection system and image projection method'20169,200,773'Inclination sensor device and vehicle lamp system using the same'20158,974,096'Inclination sensor device and vehicle lamp system using the same'20158,553,927'Image processing device and method for determining image data processes based on additional information'20138,549,021'Apparatus, method, and system of controlling setting information for confidential document'20138,339,678'Apparatus, system, and method of process control based on the determination of embedded information'20128,325,361'Apparatus, system, and method for image processing for generating and/or managing a confidential document'20128,325,970'Apparatus, method, and computer product for image processing'20128,315,424'Image processing apparatus, image processing method, and program product'20128,259,991'Image processing apparatus and image processing method'20128,238,599'Image processing device and image processing method for identifying a selected one or more embedding methods used for embedding target information'20128,228,551'Image processing method and image processing apparatus'20128,208,179'Apparatus, system, and method for image processing'20128,180,102'Image processing device, image processing method, program, and recording medium'20128,107,121'Image processing device, image processing method, and recording method for managing log of output image data'20128,009,305'Method, program, and apparatus for detecting a copy-prohibited document and prohibiting a reproduction of the detected copy prohibited document'20117,720,290'Method, program, and apparatus for detecting specific information included in image data of original image, and computer-readable storing medium storing the program'20107,684,637'Method, computer program, and apparatus for detecting specific information included in image data of original image with accuracy, and computer readable storing medium storing the program'20107,609,851'Embedding data into document and extracting embedded data from document'20097,599,081'Detecting and protecting a copy guarded document'20097,548,340'Method, program, and apparatus for prohibiting a reproduction of an anti-copy document, and a medium storing the program'20097,440,137'Apparatus, program, medium for image-area separation, image processing and image forming'20086,798,032'Metal film pattern and manufacturing method thereof'20046,627,544'Method of making a metal film pattern'20036,513,958'Vehicle lamp system'20036,516,424'System for providing reliable and effective disaster relief'20036,347,384'System for providing reliable and effective disaster relief'20026,289,131'Method for encoding wavelet coefficients'20015,993,033'Levelling apparatus for vehicle lamp'19995,655,178'Electrophotographic apparatus having cleaning device and developing device configured to prevent toner leakage'19975,594,415'Display device for a vehicle'19975,497,224'Image forming apparatus'19965,488,462'Electrophotographic apparatus having developing device with seals for preventing toner leakage'19965,463,370'Display device for a vehicle'19955,426,294'Glare sensor for a vehicle'19955,412,543'Variable light distribution type headlamp'19955,379,196'Projection headlamp for vehicles'19955,373,424'Automotive projection headlamp'19945,343,371'Vehicular projection-type headlamp'19945,339,226'Projection head lamp for cars'19945,188,057'Developing apparatus'19935,143,442'Portable projection device'19925,038,202'Image transmission system'19914,953,196'Image transmission system'1990RE033006'Feed-water heater comprising low C-Cr-Mo steel components used under wet steam'19894,851,926'Electrophotographic recording apparatus for a facsimile device'19894,667,244'Paper feeding apparatus'19874,586,705'Automatic paper feeding device for a facsimile equipment or the like apparatus'19864,529,454'Low C-Cr-Mo steel used under wet steam'19854,457,507'Sheet feeding apparatus'19844,447,959'Instrument for measuring internal dimensions'19844,400,225'Cr-Mo Steel for use as very thick plates of 75 mm or more for oil refinery, coal liquefaction and coal gasification equipment'19834,345,277'Linear light source fixing device used in a facsimile transmission apparatus'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2004Based in Chiba, JP· patent location history
1984–1993Based in Hino, JP· patent location history
1985–2018Patents assigned to ISHIKAWA MASAAKI (18)· patent assignee history
1990–2010Patents assigned to RICOH KK (9)· patent assignee history
1992–2013Based in Tokyo, JP· patent location history
1994–2016Patents assigned to KOITO MFG CO LTD (10)· patent assignee history
1994–2016Based in Shizuoka, JP· patent location history
2001–2020Based in Kanagawa, JP· patent location history
2011–2020Patents assigned to RICOH CO LTD (20)· patent assignee history
2012–2013Patents assigned to SHIMURA HIROSHI (11)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD202011–2020
ISHIKAWA MASAAKIself181985–2018
SHIMURA HIROSHI112012–2013
KOITO MFG CO LTD101994–2016
RICOH KK91990–2010
Locations
LocationPatentsSpan
Tokyo, JP251992–2013
Shizuoka, JP111994–2016
Kanagawa, JP82001–2020
Hino, JP51984–1993
Chiba, JP41983–2004