| Patent | Date |
|---|
Image reading device
Grant 6,486,974 - Nakai , et al. November 26, 2 | 2002-11-26 |
Electrophotographic photosensitive member, a process-cartridge inclusive thereof, and an image forming apparatus
Grant 6,296,978 - Takaya , et al. October 2, 2 | 2001-10-02 |
Yellow toner, process for producing the tower and image forming method using the toner
Grant 6,187,495 - Chiba , et al. February 13, 2 | 2001-02-13 |
Invisible information detecting apparatus
Grant 6,153,879 - Yoshinaga , et al. November 28, 2 | 2000-11-28 |
Image reading device with offset faces for visible and non-visible light sensors
Grant 6,094,281 - Nakai , et al. July 25, 2 | 2000-07-25 |
Image processing apparatus and method, and image reading apparatus
Grant 6,078,682 - Tanioka , et al. June 20, 2 | 2000-06-20 |
Photosensor with filter for cutting off the input of invisible information
Grant 6,051,826 - Arimoto , et al. April 18, 2 | 2000-04-18 |
Electrophotographic photosensitive member, and electrophotographic apparatus and process cartridge employing the same
Grant 5,910,386 - Yoshinaga , et al. June 8, 1 | 1999-06-08 |
Electrophotographic photosensitive member, a process-cartridge inclusive thereof and an image forming apparatus
Grant 5,879,847 - Yoshinaga , et al. March 9, 1 | 1999-03-09 |
Liquid crystal device, display apparatus using same and display method using same
Grant 5,812,227 - Toshida , et al. September 22, 1 | 1998-09-22 |
Non-visualized information recording medium and apparatus for detecting the same
Grant 5,763,891 - Yoshinaga , et al. June 9, 1 | 1998-06-09 |
Mesomorphic compound, liquid crystal composition and liquid crystal device
Grant 5,720,898 - Nohira , et al. February 24, 1 | 1998-02-24 |
Image forming method, recording medium, and visible image reproducing method
Grant 5,712,066 - Yoshinaga , et al. January 27, 1 | 1998-01-27 |
Scattering type liquid crystal device
Grant 5,631,750 - Minoura , et al. May 20, 1 | 1997-05-20 |
Image reading apparatus, copying apparatus, image processing apparatus, and image processing method
Grant 5,617,187 - Hayashi , et al. April 1, 1 | 1997-04-01 |
Optical modulation device and display apparatus with three birefringent films each acting as a half waveplate
Grant 5,568,283 - Mitsutake , et al. October 22, 1 | 1996-10-22 |
Invisible information recorded medium
Grant 5,503,904 - Yoshinaga , et al. April 2, 1 | 1996-04-02 |
Image processing apparatus having means for detecting non-visible light, and image processing method therefor
Grant 5,481,334 - Arimoto , et al. January 2, 1 | 1996-01-02 |
Display device having a mesomorphic diffraction grating layer adjacent a polymer dispersed layer
Grant 5,473,448 - Yoshinaga , et al. December 5, 1 | 1995-12-05 |
Display apparatus with chiral smectic and polymer liquid crystal films, each having birefringent first state and not birefringent second state
Grant 5,392,142 - Mitsutake , et al. February 21, 1 | 1995-02-21 |
Polymeric liquid crystal composition and liquid crystal device
Grant 5,384,069 - Yoshinaga , et al. January 24, 1 | 1995-01-24 |
Liquid crystal device, display apparatus using same and display method using same
Grant 5,372,745 - Yoshinaga , et al. December 13, 1 | 1994-12-13 |
Detecting interferential diffraction of a reflected beam from a polymer liquid crystal recording medium
Grant 5,339,306 - Yoshinaga , et al. August 16, 1 | 1994-08-16 |
Color display apparatus
Grant 5,285,298 - Kaneko , et al. February 8, 1 | 1994-02-08 |
Liquid crystal device including a polymer having a surface energy of at most 25 dyn/cm, display apparatus using same and display method using same
Grant 5,268,783 - Yoshinaga , et al. December 7, 1 | 1993-12-07 |
Main chain-type chiral smectic polymer liquid crystal and polymer liquid crystal device
Grant 5,258,134 - Yoshinaga , et al. November 2, 1 | 1993-11-02 |
Lactic acid derivative, liquid crystal composition containing same and liquid crystal device
Grant 5,167,857 - Yoshinaga , et al. December 1, 1 | 1992-12-01 |
Particle measuring device
Grant 5,123,731 - Yoshinaga , et al. June 23, 1 | 1992-06-23 |
Fluid crystal device
Grant 5,120,466 - Katagiri , et al. June 9, 1 | 1992-06-09 |
Liquid crystal display medium, liquid crystal display method and liquid crystal display apparatus for outputting color images
Grant 5,066,107 - Yoshinaga , et al. November 19, 1 | 1991-11-19 |
Polymer liquid crystal device
Grant 5,039,208 - Ohnishi , et al. August 13, 1 | 1991-08-13 |
Nonlinear optical material and nonlinear optical device
Grant 5,011,623 - Yoshinaga , et al. April 30, 1 | 1991-04-30 |
Device, method and apparatus for optical modulation using ferroelectric polymer liquid crystals
Grant 4,995,705 - Yoshinaga , et al. February 26, 1 | 1991-02-26 |
Recording with polymer liquid crystal recording medium
Grant 4,965,591 - Kurabayashi , et al. October 23, 1 | 1990-10-23 |
Optically active polymer and liquid crystal composition containing same
Grant 4,892,675 - Nohira , et al. January 9, 1 | 1990-01-09 |
Liquid crystal device having a modified polyvinyl alcohol alignment layer
Grant 4,883,344 - Okada , et al. November 28, 1 | 1989-11-28 |
Optically active composition, mesomorphic compound and liquid crystal device
Grant 4,876,027 - Yoshinaga , et al. October 24, 1 | 1989-10-24 |
Optically active compound, process for producing same and liquid crystal composition containing same
Grant 4,873,018 - Nohira , et al. October 10, 1 | 1989-10-10 |
Liquid crystal device utilizing chiral-smectic and nematic phases for thinner crystal layers
Grant 4,844,597 - Katagiri , et al. July 4, 1 | 1989-07-04 |
Ferroelectric liquid crystal device with modified polyvinyl alcohol alignment film
Grant 4,820,026 - Okada , et al. April 11, 1 | 1989-04-11 |
Optically active compound, process for producing same and liquid crystal composition containing same
Grant 4,798,680 - Nohira , et al. January 17, 1 | 1989-01-17 |
Lactic acid derivative, liquid crystal composition containing same and liquid crystal device
Grant 4,775,223 - Yoshinaga , et al. October 4, 1 | 1988-10-04 |
Ferroelectric liquid crystal device having chiral smectic and nematic liquid crystal composition
Grant 4,714,323 - Katagiri , et al. December 22, 1 | 1987-12-22 |
Liquid crystal device
Grant 4,712,872 - Kanbe , et al. December 15, 1 | 1987-12-15 |
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