1
Mitsuhiro Tokuhara: Projection apparatus provided with an electro-mechanical transducer element. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, December 27, 1988: US04793699 (43 worldwide citation)

A projection apparatus comprises a light source, a light scanning optical system including an electro-mechanical transducer element having at least one mirror row comprising a plurality of movable mirrors capable of deflecting the light beam from the light source in at least two directions and arran ...


2
Takao Aoki, Mitsuhiro Tokuhara, Yoshinori Ikeda: Color image reading apparatus with a plurality of line sensors in which a white balance operation is performed by determining amplifier gains while reading a white reference plate. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, March 29, 1988: US04734762 (41 worldwide citation)

A color image reading apparatus with a plurality of line sensors and an associated plurality of rotary color filter disks produces a plurality of sequential color component signals from each line sensor. An amplifier with an adjustable gain is provided for each of the line sensors. A white balance o ...


3
Mitsuhiro Tokuhara: Printer head and electrophotographic printer utilizing the same. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, December 24, 1985: US04560999 (30 worldwide citation)

A printer head comprising a light source device, and an optical modulator element for switching the light projected from the light source device, a device for splitting the light projected from the light source device into two polarized light components to form respectively a first light path and a ...


4
Masatoshi Okutomi, Tetsuo Sueda, Mitsuhiro Tokuhara: Image processing apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, May 23, 1989: US04833721 (25 worldwide citation)

An image processing apparatus comprises a detector which includes an image reading section of a digital copier and which chases outline information of an image pattern in a predetermined direction and thereby extracts outline points; an arithmetic operating circuit to respectively obtain outline tan ...


5
Mitsuhiro Tokuhara: Original reader. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, June 19, 1984: US04455577 (10 worldwide citation)

An original reader for image formation is disclosed. The original reader receives the reflected light from an original placed on a transparent original table and illuminated through the original table. According to the invention, the original table is provided with a light diffusive member. When an ...


6
Mitsuhiro Tokuhara, Hiroshi Ogawa: Slit exposure projection device. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, November 25, 1986: US04624555 (9 worldwide citation)

A slit exposure projection device having a projection optical system and/or an aperture stop designed such that the pupil of the projection optical system in the longitudinal direction of the slit is large relative to the pupil in the lateral direction of the slit.


7
Mitsuhiro Tokuhara, Setsuo Minami: Variable power projecting device. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, May 6, 1986: US04586814 (8 worldwide citation)

A projecting device for projecting an image of the surface of a body on a light receiving surface, in which optical element blocks are provided symmetrically with respect to a stop, of which the diameter of aperture is always constant in varying the magnification. The device includes a projecting op ...


8
Mitsuhiro Tokuhara, Mitsuharu Sawamura: Dichroic mirror with at least ten layers. Canon Kabushiki Kaisha, Toren McGeady and Stanger, January 27, 1981: US04247167 (8 worldwide citation)

A dichroic mirror made of at least ten or more alternate high refractive index and low refractive index layers for a designed wave length expressed by .lambda.o, basic optical film thickness of the high refractive index layers are represented by 1/4.lambda.o and 3/4.lambda.o, while the basic optical ...


9
Mitsuhiro Tokuhara, Akiyoshi Torigai, Teruo Morikawa: Variable magnification optical apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, February 5, 1985: US04497573 (7 worldwide citation)

A variable magnification optical apparatus in which an image of an original can be formed on a photosensitive surface at selectively different magnifications. The amount of movement of a lens for changing the imaging magnification is corrected in accordance with the difference between the actual val ...


10
Haruhisa Honda, Hiroaki Tsuchiya, Michitaka Setani, Mitsuhiro Tokuhara: Image exposing apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, February 10, 1987: US04641944 (7 worldwide citation)

An image exposing apparatus comprises a focusing optical system for focusing an image onto a photosensitive member and having a one-line array of a plurality of focusing light transmission media, and light intensity distribution correction means arranged in a light path for forming the image for eli ...