Patent Inventor: Masahiro Hayakawa
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Image forming apparatus and control method of image forming apparatus
Inventor: Hayakawa | Patent Number: 7817948
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Image forming apparatus and control method of image forming apparatus
Inventor: Hayakawa | Patent Number: 7609987
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Humidity measuring apparatus and image forming apparatus
Inventor: Hayakawa | Patent Number: 7597001
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Image processing apparatus and method capable of eliminating image contour distortion
Inventor: Yamamoto, et al. | Patent Number: 7167273
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Color matching method and device, color matching program, and computer readable record medium that stores color matching program allowing appropriate color matching at high speed
Inventor: Hiramatsu, et al. | Patent Number: 7127102
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Covers between an upper cage and a lower cage of a double deck elevator
Inventor: Itoh, et al. | Patent Number: 7077240
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Color correction method and color correction program to obtain desired output image
Inventor: Deishi, et al. | Patent Number: 7006105
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Double deck elevator
Inventor: Itoh, et al. | Patent Number: 6615952
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Image forming apparatus having improved position aberration detection
Inventor: Hayakawa | Patent Number: 6603495
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Data imprinting system for camera
Inventor: Hayakawa | Patent Number: 6374057
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Camera having an image stabilizer
Inventor: Hayakawa | Patent Number: 6130993
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Waterproof and/or water-resistant camera
Inventor: Hayakawa | Patent Number: 5946501
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Camera having cover mechanism of film chamber
Inventor: Hayakawa | Patent Number: 5907729
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Forced-driving apparatus for film rewinding motor of a camera
Inventor: Endoh, et al. | Patent Number: 5822631
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Waterproof and/or water-resistant camera
Inventor: Hayakawa | Patent Number: 5713048
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Camera having electronic flash equipment
Inventor: Hayakawa | Patent Number: 5708875
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Regulated parallax compensation system for a camera finder
Inventor: Ichikawa, et al. | Patent Number: 5452034
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Adaptor for film cartridge
Inventor: Hayakawa | Patent Number: 5406346
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View finder and camera having same
Inventor: Hasushita, et al. | Patent Number: 5345285
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Remotely controllable camera system
Inventor: Ichikawa, et al. | Patent Number: 5305041
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Sealed case
Inventor: Hayakawa | Patent Number: 5305031
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Pressure alarm for water-sealed camera
Inventor: Hayakawa, et al. | Patent Number: 5153622
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Pressure alarm in water-sealed camera
Inventor: Hayakawa, et al. | Patent Number: 5111222
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Waterproof and/or water-resistant camera
Inventor: Hayakawa, et al. | Patent Number: 5070348
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Transmission system with backup function
Inventor: Hayakawa | Patent Number: 5021938
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Automatic focusing camera
Inventor: Shindo, et al. | Patent Number: 4963913
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Capacitor element
Inventor: Hirano, et al. | Patent Number: 4384215
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Semiconductor device
Inventor: Hayakawa, et al. | Patent Number: 4359754