Patents by Inventor Shigeto Ohmori
Shigeto Ohmori has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7854864Abstract: A manufacturing method of an optical film provided with a convexoconcave structure, comprises the steps of: coating a resin solution including a first resin solved by a solvent onto an endless or roll-like mold provided with a convexoconcave structure, and forming a resin solution layer on the mold; laminating a film substrate onto the resin solution layer to make a laminated film before the solvent in the resin solution layer is completely dried, the film substrate including a second resin, which is capable of absorbing the solvent or is soluble by the solvent; and peeling the laminated film from the mold before the solvent in the laminated film is completely dried.Type: GrantFiled: April 19, 2007Date of Patent: December 21, 2010Assignee: Konica Minolta Opto, Inc.Inventors: Akira Sato, Masaru Iwagaki, Hirokazu Sato, Shigeto Ohmori, Kazuhiro Miyazawa, Takashi Murakami, Hirokazu Koyama, Nobuo Kubo, Koji Tasaka, Shigeki Oka
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Patent number: 7633680Abstract: A diffraction grating device for splitting or coupling light beams permits the divergence of the light beams to be minimized easily. A first light beam is incident on a diffraction grating from the side thereof facing the inside of the device, and a second light beam is incident on the diffraction grating from the side thereof facing air. The diffraction grating transmits the first light beam by diffraction of the minus first order so that it travels in the reverse direction along the optical path of the second light beam before incidence, and transmits the second light beam by diffraction of the zero order. The second light beam, transmitted by diffraction of the zero order, spreads over a certain width of wavelengths, but does not diverge even after diffraction.Type: GrantFiled: April 30, 2008Date of Patent: December 15, 2009Assignee: Konica Minolta Holdings, Inc.Inventor: Shigeto Ohmori
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Publication number: 20090135487Abstract: A diffraction grating device for splitting or coupling light beams permits the divergence of the light beams to be minimized easily. A first light beam is incident on a diffraction grating from the side thereof facing the inside of the device, and a second light beam is incident on the diffraction grating from the side thereof facing air. The diffraction grating transmits the first light beam by diffraction of the minus first order so that it travels in the reverse direction along the optical path of the second light beam before incidence, and transmits the second light beam by diffraction of the zero order. The second light beam, transmitted by diffraction of the zero order, spreads over a certain width of wavelengths, but does not diverge even after diffraction.Type: ApplicationFiled: April 30, 2008Publication date: May 28, 2009Applicant: Konica Minolta Holdings, Inc.Inventors: Shigeto OHMORI, Koujirou Sekine, Mitsuru Yokoyama
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Patent number: 7385761Abstract: A diffraction grating device for splitting or coupling light beams permits the divergence of the light beams to be minimized easily. A first light beam is incident on a diffraction grating from the side thereof facing the inside of the device, and a second light beam is incident on the diffraction grating from the side thereof facing air. The diffraction grating transmits the first light beam by diffraction of the minus first order so that it travels in the reverse direction along the optical path of the second light beam before incidence, and transmits the second light beam by diffraction of the zero order. The second light beam, transmitted by diffraction of the zero order, spreads over a certain width of wavelengths, but does not diverge even after diffraction.Type: GrantFiled: February 9, 2007Date of Patent: June 10, 2008Assignee: Konica Minolta Holdings, Inc.Inventors: Shigeto Ohmori, Koujirou Sekine
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Patent number: 7372079Abstract: To improve the front brightness of the light emitted from a surface light emitter having a surface light emitting device. In the surface light emitter to which a light control sheet having depressions is provided, the surface of the light control sheet having the depressions is adhered to a light emitting side surface of a surface light emitting device, and the transparent material whose refractive index is lower than the refractive index of the light control sheet is arranged in the spaces formed between the depressions and the light emitting side surface of the surface light emitting device.Type: GrantFiled: January 22, 2007Date of Patent: May 13, 2008Assignee: Konica Minolta Holdings, Inc.Inventors: Manami Kuiseko, Akira Sato, Shigeto Ohmori
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Patent number: 7295387Abstract: A lens optical system is provided with a cemented lens element formed by cementing two constituent lens elements made of different optical materials together, with a diffractive optical surface formed at the cementing interface between the two constituent lens elements. The two constituent lens elements have at their respective interfaces with air a radius of curvature different from the radius of curvature that they have at the cementing interface.Type: GrantFiled: November 30, 1999Date of Patent: November 13, 2007Assignee: Minolta Co., Ltd.Inventors: Shigeto Ohmori, Yuichiro Ori
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Publication number: 20070252293Abstract: A manufacturing method of an optical film provided with a convexoconcave structure, comprises the steps of: coating a resin solution including a first resin solved by a solvent onto an endless or roll-like mold provided with a convexoconcave structure, and forming a resin solution layer on the mold; laminating a film substrate onto the resin solution layer to make a laminated film before the solvent in the resin solution layer is completely dried, the film substrate including a second resin, which is capable of absorving the solution or is soluble by the solvent; and peeling the laminated film from the mold before the solvent in the laminated film is completely dried.Type: ApplicationFiled: April 19, 2007Publication date: November 1, 2007Applicant: KONICA MINOLTA OPTO, INC.Inventors: Akira SATO, Masaru IWAGAKI, Hirokazu SATO, Shigeto OHMORI, Kazuhiro MIYAZAWA, Takashi MURAKAMI, Hirokazu KOYAMA, Nobuo KUBO, Koji TASAKA, Shigeki OKA
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Publication number: 20070176195Abstract: To improve the front brightness of the light emitted from a surface light emitter having a surface light emitting device. In the surface light emitter to which a light control sheet having depressions is provided, the surface of the light control sheet having the depressions is adhered to a light emitting side surface of a surface light emitting device, and the transparent material whose refractive index is lower than the refractive index of the light control sheet is arranged in the spaces formed between the depressions and the light emitting side surface of the surface light emitting device.Type: ApplicationFiled: January 22, 2007Publication date: August 2, 2007Inventors: Manami Kuiseko, Akira Sato, Shigeto Ohmori
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Publication number: 20070139778Abstract: A diffraction grating device for splitting or coupling light beams permits the divergence of the light beams to be minimized easily. A first light beam is incident on a diffraction grating from the side thereof facing the inside of the device, and a second light beam is incident on the diffraction grating from the side thereof facing air. The diffraction grating transmits the first light beam by diffraction of the minus first order so that it travels in the reverse direction along the optical path of the second light beam before incidence, and transmits the second light beam by diffraction of the zero order. The second light beam, transmitted by diffraction of the zero order, spreads over a certain width of wavelengths, but does not diverge even after diffraction.Type: ApplicationFiled: February 9, 2007Publication date: June 21, 2007Inventors: Shigeto Ohmori, Koujirou Sekine, Mitsuru Yokoyama
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Patent number: 7199926Abstract: A diffraction grating device for splitting or coupling light beams permits the divergence of the light beams to be minimized easily. A first light beam is incident on a diffraction grating from the side thereof facing the inside of the device, and a second light beam is incident on the diffraction grating from the side thereof facing air. The diffraction grating transmits the first light beam by diffraction of the minus first order so that it travels in the reverse direction along the optical path of the second light beam before incidence, and transmits the second light beam by diffraction of the zero order. The second light beam, transmitted by diffraction of the zero order, spreads over a certain width of wavelengths, but does not diverge even after diffraction.Type: GrantFiled: March 28, 2005Date of Patent: April 3, 2007Assignee: Konica Minolta Holdings, Inc.Inventors: Shigeto Ohmori, Koujirou Sekine, Mitsuru Yokoyama
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Publication number: 20060114566Abstract: A diffraction grating device for splitting or coupling light beams permits the divergence of the light beams to be minimized easily. A first light beam is incident on a diffraction grating from the side thereof facing the inside of the device, and a second light beam is incident on the diffraction grating from the side thereof facing air. The diffraction grating transmits the first light beam by diffraction of the minus first order so that it travels in the reverse direction along the optical path of the second light beam before incidence, and transmits the second light beam by diffraction of the zero order. The second light beam, transmitted by diffraction of the zero order, spreads over a certain width of wavelengths, but does not diverge even after diffraction.Type: ApplicationFiled: March 28, 2005Publication date: June 1, 2006Inventors: Shigeto Ohmori, Koujirou Sekine, Mitsuru Yokoyama
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Publication number: 20040201764Abstract: An image shooting camera is provided with a silver salt picture shooting section, a video signal recording section, an information provider, an information recording section and an index data recording section. The provider outputs an individual identification number and a frame number of a silver salt photosensitive medium used as a recording medium of the silver salt picture shooting section. The numbers outputted from the provider are recorded by the information recording section. The index data recording section records index data including the numbers through the video signal recording section.Type: ApplicationFiled: June 18, 1996Publication date: October 14, 2004Inventors: TSUTOMU HONDA, TOUGO TERAMOTO, HIROAKI KUBO, GEN SASAKI, KIYOSHI SEIGENJI, HIDEKI NAGATA, SHIGETO OHMORI, TOSHIHIRO HAMAMURA
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Patent number: 6704149Abstract: A lens optical system is provided with a cemented lens element formed by cementing two constituent lens elements made of different optical materials together, with a diffractive optical surface formed at the cementing interface between the two constituent lens elements. The two constituent lens elements have at their respective interfaces with air a radius of curvature different from the radius of curvature that they have at the cementing interface.Type: GrantFiled: March 13, 2002Date of Patent: March 9, 2004Assignee: Minolta Co., Ltd.Inventors: Shigeto Ohmori, Yuichiro Ori
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Patent number: 6671096Abstract: A diffractive optical element for white light is composed of a plurality of layers of optical materials and has a relief pattern constituting a diffraction grating formed at least at one cementing interface between the two different optical materials. The grating height of the relief pattern constituting the diffraction grating is defined by the following formula: h=&lgr;/|n−n′| where h represents the grating height of the relief pattern constituting the diffraction grating; &lgr; represents the wavelength (here it is assumed that &lgr;≦450 (nm)); n represents the refractive index of the optical material abutting the interface from the object side for light of the wavelength &lgr;; and n′ represents the refractive index of the optical material abutting the interface from the image side for light of the wavelength &lgr;.Type: GrantFiled: February 13, 2002Date of Patent: December 30, 2003Assignee: Minolta Co., Ltd.Inventor: Shigeto Ohmori
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Patent number: 6590709Abstract: A diffractive optical element acts as a lens. The optical element has a diffraction grating. The diffractive grating is provided with a plurality of ridges. Each of the ridges has a transmissive surface. A sectional profile of the transmissive surface is composed of a plurality of successively connected strait lines of an identical length. The length varies from one ridge to another.Type: GrantFiled: April 17, 1998Date of Patent: July 8, 2003Assignee: Minolata Co., Ltd.Inventors: Yuichiro Ori, Koji Miyai, Hiromu Mukai, Shigeto Ohmori
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Publication number: 20030076591Abstract: A lens optical system is provided with a cemented lens element formed by cementing two constituent lens elements made of different optical materials together, with a diffractive optical surface formed at the cementing interface between the two constituent lens elements. The two constituent lens elements have at their respective interfaces with air a radius of curvature different from the radius of curvature that they have at the cementing interface.Type: ApplicationFiled: March 13, 2002Publication date: April 24, 2003Inventors: Shigeto Ohmori, Yuichiro Ori
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Patent number: 6516152Abstract: A focusing screen for use in a camera has a diffusive surface having a plurality of random pattern cells of one or a plurality of types arranged two-dimensionally so as to form a macroscopically flat surface. The random pattern cells are each composed of a plurality of minute rectangular elements having one of two to eight types of heights, and the individual rectangular elements are arranged irregularly so as to constitute a plurality of types of diffraction gratings having different grating pitches.Type: GrantFiled: May 10, 2000Date of Patent: February 4, 2003Assignee: Minolta Co., Ltd.Inventors: Hiromu Mukai, Shigeto Ohmori
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Publication number: 20020167728Abstract: A diffractive optical element for white light is composed of a plurality of layers of optical materials and has a relief pattern constituting a diffraction grating formed at least at one cementing interface between the two different optical materials.Type: ApplicationFiled: February 13, 2002Publication date: November 14, 2002Applicant: MINOLTA CO., LTD.Inventor: Shigeto Ohmori
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Patent number: 6392805Abstract: A diffractive optical element for white light is composed of a plurality of layers of optical materials and has a relief pattern constituting a diffraction grating formed at least at one cementing interface between the two different optical materials. The grating height of the relief pattern constituting the diffraction grating is defined by h=&lgr;/n−n′|, where h represents the grating height of the relief pattern constituting the diffraction grating; &lgr; represents the design wavelength, which is less than or equal to 450 nm; n represents the refractive index of the optical material abutting the interface from the object side for light of the wavelength &lgr;; and n′ represents the refractive index of the optical material abutting the interface from the image side for light of the wavelength &lgr;.Type: GrantFiled: March 18, 1999Date of Patent: May 21, 2002Assignee: Minolta Co., Ltd.Inventor: Shigeto Ohmori
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Patent number: 6393216Abstract: A camera system includes a camera main body having a photographic device for photographing an image of object to produce image signal and a monitor device separatable from the camera main body. The monitor device is provided with a control portion for controlling the exposure of photographic device in addition to a display portion. The operator can check a photographed image before or after the image is recorded on a film. Also, the monitor device selectively provides a singular display of monitor image for usual shooting and a continuous display of monitor images for serial shooting.Type: GrantFiled: July 10, 1997Date of Patent: May 21, 2002Assignee: Minolta Co., Ltd.Inventors: Hiroshi Ootsuka, Shinichi Maehama, Katsunori Maeda, Shigeto Ohmori