Inventor · disambiguated record
Masaaki Fujinawa
Also filed as: FUJINAWA MASAAKI
33 granted patents·1,603 citations·filing 1975–1997
98Inventor score
Files withHITACHI LTD32
Top patents by PatentIndex Score
33 records- 0193US5590317ADocument information compression and retrieval system and document information registration and retrieval methodHITACHI LTD·Filed 1993·Granted Dec 31, 1996·121 cites·16 claims
- 0293US5051886ASystem for character stream search using finite state automaton techniqueHITACHI LTD·Filed 1988·Granted Sep 24, 1991·89 cites·14 claims
- 0393US4893188ADocument image entry systemHITACHI LTD·Filed 1988·Granted Jan 9, 1990·101 cites·16 claims
- 0492US5125045AImage processing systemHITACHI LTD·Filed 1988·Granted Jun 23, 1992·99 cites·41 claims
- 0587US5021989ADocument browsing apparatus with concurrent processing and retrievelHITACHI LTD·Filed 1990·Granted Jun 4, 1991·135 cites·12 claims
- 0687US4143310AApparatus for positioningHITACHI LTD·Filed 1976·Granted Mar 6, 1979·44 cites·19 claims
- 0783US4937681APicture coding system for document imageHITACHI LTD·Filed 1989·Granted Jun 26, 1990·43 cites·13 claims
- 0879US5181260AMethod for determining the amount of skew of image, method for correcting the same, and image data processing systemHITACHI LTD·Filed 1990·Granted Jan 19, 1993·87 cites·11 claims
- 0979US5140644ACharacter string retrieving system and methodHITACHI LTD·Filed 1991·Granted Aug 18, 1992·88 cites·12 claims
- 1079US5129011AMethod and apparatus for retrieving image dataHITACHI LTD·Filed 1990·Granted Jul 7, 1992·52 cites·21 claims
- 1178US6094647APresearch type document search method and apparatusHITACHI LTD·Filed 1997·Granted Jul 25, 2000·66 cites·10 claims
- 1277US5539843AImage processing systemHITACHI LTD·Filed 1992·Granted Jul 23, 1996·36 cites·5 claims
- 1377US5519857AHierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatusHITACHI LTD·Filed 1992·Granted May 21, 1996·59 cites·8 claims
- 1476US5128748AImage processing system and apparatus for processing color documentsHITACHI LTD·Filed 1990·Granted Jul 7, 1992·42 cites·39 claims
- 1576US4757302AImage display apparatusHITACHI LTD·Filed 1986·Granted Jul 12, 1988·52 cites·7 claims
- 1676US4051417AControl system for a brushless motorHITACHI LTD·Filed 1975·Granted Sep 27, 1977·21 cites·6 claims
- 1769US5522041AData processor and data transfer methodHITACHI LTD·Filed 1993·Granted May 28, 1996·60 cites·7 claims
- 1869US5268771AImage restoration processing system and methodHITACHI LTD·Filed 1991·Granted Dec 7, 1993·29 cites·41 claims
- 1968US5231482AImage filing apparatus and method for thereby encoding and storing various documentsHITACHI LTD·Filed 1990·Granted Jul 27, 1993·28 cites·44 claims
- 2067US5168533AHierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatusHITACHI LTD·Filed 1990·Granted Dec 1, 1992·37 cites·56 claims
- 2166US5428727AMethod and system for registering and filing image dataFiled 1993·Granted Jun 27, 1995·44 cites·75 claims
- 2266US5129016ASystem for registration of documentsHITACHI LTD·Filed 1990·Granted Jul 7, 1992·45 cites·26 claims
- 2365US5278981ACharacter stream search apparatus using a finite state automationHITACHI LTD·Filed 1991·Granted Jan 11, 1994·39 cites·6 claims
- 2464US5235681AImage filing system for protecting partial regions of image data of a documentHITACHI LTD·Filed 1991·Granted Aug 10, 1993·42 cites·10 claims
- 2560US5576849AImage data transformation apparatus and image entry apparatusHITACHI LTD·Filed 1995·Granted Nov 19, 1996·25 cites·37 claims
- 2656US5901254AApparatus and method for image reductionHITACHI LTD·Filed 1997·Granted May 4, 1999·26 cites·39 claims
- 2752US5335084ADocument image filing system having input color mode selecting capabilityHITACHI LTD·Filed 1992·Granted Aug 2, 1994·13 cites·4 claims
- 2851US5608858AMethod and system for registering and filing image dataHITACHI LTD·Filed 1995·Granted Mar 4, 1997·23 cites·15 claims
- 2949US5388167ADocument image processing system and document image processing methodHITACHI LTD·Filed 1992·Granted Feb 7, 1995·23 cites·4 claims
- 3047US5390034AColor image processing method and apparatus with chrominance emphasizing processHITACHI LTD·Filed 1993·Granted Feb 14, 1995·10 cites·10 claims
- 3145US5452102AImage processing unitHITACHI LTD·Filed 1994·Granted Sep 19, 1995·9 cites·8 claims
- 3242US5353397ARegistration/search system for registering and searching image data using vector data attributesHITACHI LTD·Filed 1990·Granted Oct 4, 1994·14 cites·21 claims
- 3331US4485410AGraphic readingHITACHI LTD·Filed 1982·Granted Nov 27, 1984·1 cites·10 claims
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