Inventor · Rifu, JP

Mikio Watanabe

211Patents
26h-index
115Co-inventors
93Inventor score

Filing activity: Jul 2, 1973 → May 2, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US4887161A Memory cartridge and digital electronic still video camera in which said memory cartridge is freely loadable/unloadable Emerging Cross-Sectional Technologies 185 Expired
US6687608B2 Information notification system and method, and navigation system and method Physics 170 Expired
US5032927A Image signal recording apparatus capable of recording compressed image data together with audio data Electricity 162 Expired
US5590306A Memory card management system for writing data with usage and recording codes made significant Physics 122 Expired
US6138178A Controlled device storing multiple drivers that judges and downloads a particular driver corresponding to a controller's operating system having an identical or greater version number Electricity 113 Expired
US6546187B1 Digital camera for providing random special effect images and an image processing method therein Electricity 106 Expired
US6409026B1 Showcase assembly unit for showcase structure Human Necessities 102 Expired
US5101280A Device for coding a picture signal by compression Electricity 101 Expired
US5528293A Digital electronic still camera and method of recording image data in memory card Electricity 100 Expired
US7605846B2 Image communication system and an apparatus for and a method of processing an image Electricity 98 Active
US5051840A Device for coding a picture signal by compression Electricity 90 Expired
US5229864A Device for regenerating a picture signal by decoding Electricity 75 Expired
US5226145A Storage management system for memory card using memory allocation table Electricity 69 Expired
US5093731A Image data recording apparatus for storing image data with a recording-finished code and a recording sequence code Emerging Cross-Sectional Technologies 66 Expired
US6621938B1 Image capture apparatus and method Physics 59 Expired
US5548741A IC memory card system having a host processor selectively operable with an IC memory card including either an SRAM or an EEPROM Physics 57 Expired
US5720341A Stacked-typed duplex heat exchanger Mechanical Engineering; Lighting; Heating 51 Expired
US5170264A Compression coding device and expansion decoding device for a picture signal Electricity 49 Expired
US6529236B1 Digital camera for outputting digital image signals and image reproducing device connectable thereof Electricity 38 Expired
US5091787A Memory cartridge-connectable electronic device such as electronic still video camera Emerging Cross-Sectional Technologies 36 Expired
US5184229A Compression coding device and expansion decoding device for picture signal Electricity 33 Expired
US4397398A Compact collapsible containers Emerging Cross-Sectional Technologies 31 Expired
US5454096A Storage management system for memory card using memory allocation table Physics 31 Expired
US7027084B1 Image communication system and an apparatus for and a method of processing an image Electricity 29 Expired
US4907231A Memory cartridge-connectable electronic device such as electronic still video camera Emerging Cross-Sectional Technologies 27 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.