Patents by Inventor Hideaki Ohno
Hideaki Ohno 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: 11977182Abstract: According to one embodiment, an optical imaging apparatus includes a polarizer assembly, a polarization image sensor, and a lens assembly. The polarizer assembly is configured to acquire a first light ray of a first polarization component and a second light ray of a second polarization component which is different from the first polarization component, by using a light flux from an identical direction. The polarization image sensor is located in a position facing the polarizer assembly. The polarization image sensor is configured to acquire an image of the first polarization component and an image of the second polarization component at once or at the same time. The lens assembly includes a first lens configured to form the images on the polarization image sensor.Type: GrantFiled: February 28, 2020Date of Patent: May 7, 2024Assignee: Kabushiki Kaisha ToshibaInventors: Hiroshi Ohno, Hiroya Kano, Hideaki Okano, Takahiro Kamikawa
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Publication number: 20240094115Abstract: According to an embodiment, a non-transitory storage medium stores an optical inspection program. The optical inspection program causes a processor to execute generating a wavelength selection portion-removed image by removing, from a captured image of an object surface imaged through a wavelength selection portion configured to select at least two different wavelength spectra from incident light, an image of the wavelength selection portion included in the captured image.Type: ApplicationFiled: February 24, 2023Publication date: March 21, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hiroshi OHNO, Hiroya KANO, Hideaki OKANO
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Publication number: 20240094114Abstract: According to an embodiment, an optical inspection apparatus includes: an illumination portion, a wavelength selection portion and an imaging portion. The illumination portion irradiates a first object point of a surface of an object with first illumination light, and a second object point of the surface of the object with second illumination light. The imaging portion images light from the first object point through the wavelength selection portion when a normal direction at the first object point and a direction of the first illumination light have an opposing relationship, and images light from the second object point through the wavelength selection portion when a normal direction at the second object point and a direction of the second illumination light have an opposing relationship.Type: ApplicationFiled: February 27, 2023Publication date: March 21, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hiroshi OHNO, Hiroya KANO, Hideaki OKANO
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Patent number: 10143120Abstract: A component mounter is provided with a nozzle shaft holder which includes a through-hole into which a nozzle shaft, a component suction nozzle being installed on the bottom end thereof, is inserted, and bearings which are disposed in two locations separated vertically on an inner circumferential surface of the through-hole and which guide the nozzle shaft in the vertical direction. In the bearings, two ring-shaped guide portions which surround an outer circumferential surface of the nozzle shaft are formed separated in a vertical direction, a grease holder, which has a larger inner diameter than the ring-shaped guide portions, is formed between the two ring-shaped guide portions, and a space surrounded by the outer circumferential surface of the nozzle shaft, the two ring-shaped guide portions, and the grease holder is filled with grease.Type: GrantFiled: September 20, 2016Date of Patent: November 27, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Takaki Fukami, Hideaki Ohno
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Publication number: 20170105323Abstract: A component mounter is provided with a nozzle shaft holder which includes a through-hole into which a nozzle shaft, a component suction nozzle being installed on the bottom end thereof, is inserted, and bearings which are disposed in two locations separated vertically on an inner circumferential surface of the through-hole and which guide the nozzle shaft in the vertical direction. In the bearings, two ring-shaped guide portions which surround an outer circumferential surface of the nozzle shaft are formed separated in a vertical direction, a grease holder, which has a larger inner diameter than the ring-shaped guide portions, is formed between the two ring-shaped guide portions, and a space surrounded by the outer circumferential surface of the nozzle shaft, the two ring-shaped guide portions, and the grease holder is filled with grease.Type: ApplicationFiled: September 20, 2016Publication date: April 13, 2017Inventors: TAKAKI FUKAMI, HIDEAKI OHNO
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Publication number: 20110143973Abstract: The present invention has the object of providing a grease composition for a mounter that exhibits excellent stability to mechanical shearing, and excellent mixing stability, a guiding device for a mounter that includes the grease composition, and a mounter that mounts the guiding device. A grease composition for a mounter includes a base oil and a thickening agent, has a worked penetration of 200-400, a dropping point of greater than or equal to 220° C., and a worked penetration change during a roll stability test of 0 to less than or equal to +100.Type: ApplicationFiled: July 10, 2009Publication date: June 16, 2011Inventors: Hideaki Ohno, Yukitoshi Fujinami
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Patent number: 7947635Abstract: A hydrodynamic bearing device being low in torque, low in power consumption, high in reliability and best suited for miniaturization and a spindle motor using the same. The hydrodynamic bearing device in accordance with the present invention, dynamic pressure generation grooves being provided on at least one of a shaft or a sleeve, and a lubricant being present in a clearance where the above-mentioned shaft and the above-mentioned sleeve are opposed to each other, is characterized in that the above-mentioned lubricant contains diesters obtained from a divalent alcohol having 4 to 8 carbon atoms and having no alkyl side chain at the ? position and one or more kinds of saturated monovalent fatty acids having 9 to 13 carbon atoms.Type: GrantFiled: August 4, 2009Date of Patent: May 24, 2011Assignee: Panasonic CorporationInventors: Katsushi Hirata, Takanori Shiraishi, Hideaki Ohno
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Patent number: 7781383Abstract: A lubricant, comprising: a base oil as primary lubricant component, and a naphthenate salt as additive (A), and an alkylimidazole compound as additive (B), added to the base oil, preferably further comprising an aliphatic amine compound as additive (C), a fluid dynamic bearing with the lubricant filled therein, a spindle motor with the fluid dynamic bearing installed therein, and a magnetic disk device with the spindle motor installed therein.Type: GrantFiled: April 10, 2006Date of Patent: August 24, 2010Assignee: Panasonic CorporationInventors: Takanori Shiraishi, Hideaki Ohno, Katsushi Hirata
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Patent number: 7776802Abstract: The invention provides a hydrodynamic bearing device including at least one of a shaft structure and a sleeve having a dynamic pressure-generating mechanism, and a lubricant present in a gap between the shaft structure and the sleeve. The lubricant contains a diester with a total carbon number of 20-28 obtainable by a divalent alcohol that has at least one ether bond, and one or more types of C6 to C10 saturated monovalent fatty acid.Type: GrantFiled: December 6, 2005Date of Patent: August 17, 2010Assignee: Panasonic CorporationInventors: Katsushi Hirata, Hideaki Ohno, Takanori Shiraishi
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Patent number: 7737095Abstract: A hydrodynamic bearing device comprises at least one of a rotating component and a fixed component having a dynamic pressure-generating mechanism, and a lubricant present in a gap between the rotating component and the fixed component; wherein the lubricant contains at least one compound selected from the group consisting of aliphatic ethers having one or more ether bonds and a total carbon number of 24 to 39.Type: GrantFiled: February 24, 2006Date of Patent: June 15, 2010Assignee: Panasonic CorporationInventors: Takanori Shiraishi, Katsushi Hirata, Hideaki Ohno
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Patent number: 7726881Abstract: A hydrodynamic bearing device is provided for use with a spindle motor. The hydrodynamic bearing device has a sleeve made of a sintered metal that is obtained by sintering a sintering material that is iron, an iron alloy, copper, a copper alloy or a mixture thereof. This sintered metal has independent pores, which do not communicate with each other, by selecting conditions for forming a desired sintered body within a predetermined range. The conditions includes a grain size of powdered metal of a material for the sintered metal, a molding pressure when the molded body is formed, sintering temperature and sintering period in the sintering step.Type: GrantFiled: February 26, 2009Date of Patent: June 1, 2010Assignee: Panasonic CorporationInventors: Tsutomu Hamada, Takafumi Asada, Hideaki Ohno
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Publication number: 20090290821Abstract: A hydrodynamic bearing device being low in torque, low in power consumption, high in reliability and best suited for miniaturization and a spindle motor using the same. The hydrodynamic bearing device in accordance with the present invention, dynamic pressure generation grooves being provided on at least one of a shaft or a sleeve, and a lubricant being present in a clearance where the above-mentioned shaft and the above-mentioned sleeve are opposed to each other, is characterized in that the above-mentioned lubricant contains diesters obtained from a divalent alcohol having 4 to 8 carbon atoms and having no alkyl side chain at the ? position and one or more kinds of saturated monovalent fatty acids having 9 to 13 carbon atoms.Type: ApplicationFiled: August 4, 2009Publication date: November 26, 2009Applicant: Panasonic CorporationInventors: Katsushi HIRATA, Takanori SHIRAISHI, Hideaki OHNO
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Publication number: 20090155116Abstract: A hydrodynamic bearing device is provided for use with a spindle motor. The hydrodynamic bearing device has a sleeve made of a sintered metal that is obtained by sintering a sintering material that is iron, an iron alloy, copper, a copper alloy or a mixture thereof. This sintered metal has independent pores, which do not communicate with each other, by selecting conditions for forming a desired sintered body within a predetermined range. The conditions includes a grain size of powdered metal of a material for the sintered metal, a molding pressure when the molded body is formed, sintering temperature and sintering period in the sintering step.Type: ApplicationFiled: February 26, 2009Publication date: June 18, 2009Inventors: Tsutomu Hamada, Takafumi Asada, Hideaki Ohno
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Publication number: 20090154851Abstract: A hydrodynamic bearing device is provided for use with a spindle motor. The hydrodynamic bearing device has a sleeve made of a sintered metal that is obtained by sintering a sintering material that is iron, an iron alloy, copper, a copper alloy or a mixture thereof. This sintered metal has independent pores, which do not communicate with each other, by selecting conditions for forming a desired sintered body within a predetermined range. The conditions includes a grain size of powdered metal of a material for the sintered metal, a molding pressure when the molded body is formed, sintering temperature and sintering period in the sintering step.Type: ApplicationFiled: February 26, 2009Publication date: June 18, 2009Inventors: Tsutomu Hamada, Takafumi Asada, Hideaki Ohno
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Patent number: 7513689Abstract: A hydrodynamic bearing device is provided for use with a spindle motor. The hydrodynamic bearing device has a sleeve made of a sintered metal that is obtained by sintering a sintering material that is iron, an iron alloy, copper, a copper alloy or a mixture thereof. This sintered metal has independent pores, which do not communicate with each other, by selecting conditions for forming a desired sintered body within a predetermined range. The conditions includes a grain size of powdered metal of a material for the sintered metal, a molding pressure when the molded body is formed, sintering temperature and sintering period in the sintering step.Type: GrantFiled: August 3, 2005Date of Patent: April 7, 2009Assignee: Panasonic CorporationInventors: Tsutomu Hamada, Takafumi Asada, Hideaki Ohno
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Patent number: 7495863Abstract: A hydrodynamic bearing device has high reliability and is suitable for miniaturization through superior heat resistance and by utilizing a dynamic pressure-generating liquid with little loss due to evaporation. The hydrodynamic bearing device has at least one of a shaft structure and a sleeve having a dynamic pressure-generating mechanism. The dynamic pressure-generating liquid present in a gap between the shaft structure and the sleeve has a main component that is ionic liquid.Type: GrantFiled: September 28, 2005Date of Patent: February 24, 2009Assignee: Panasonic CorporationInventors: Hideaki Ohno, Katsushi Hirata, Takanori Shiraishi
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Patent number: 7186028Abstract: A hydrodynamic bearing device capable of inhibiting leakage of a working fluid to an outside of a bearing and preventing reduction in radial bearing rigidity, and capable of keeping a gap between a thrust bearing and a radial bearing favorable and rotating stably. The hydrodynamic bearing device includes a shaft relatively rotatably inserted into a bearing hole of a sleeve, a radial bearing surface having dynamic pressure generating grooves formed on at least one of an outer peripheral surface of the shaft and an inner peripheral surface of the sleeve, and a gap filled with a working fluid between the shaft and the sleeve. The shaft is made of high manganese chrome steel or stainless steel, and the sleeve is entirely made of sintered metal of metal particles including at least 60% by weight of iron or copper. Resin, metal or water glass is impregnated in pores on a surface of the sintered metal and cured.Type: GrantFiled: March 4, 2005Date of Patent: March 6, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Takafumi Asada, Tsutomu Hamada, Hideaki Ohno, Yasunori Tokunou
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Publication number: 20060252658Abstract: A lubricant, comprising: a base oil as primary lubricant component, and a naphthenate salt as additive (A), and an alkylimidazole compound as additive (B), added to the base oil, preferably further comprising an aliphatic amine compound as additive (C), a fluid dynamic bearing with the lubricant filled therein, a spindle motor with the fluid dynamic bearing installed therein, and a magnetic disk device with the spindle motor installed therein.Type: ApplicationFiled: April 10, 2006Publication date: November 9, 2006Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Takanori Shiraishi, Hideaki Ohno, Katsushi Hirata
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Publication number: 20060171613Abstract: A hydrodynamic bearing device comprises at least one of a rotating component and a fixed component having a dynamic pressure-generating mechanism, and a lubricant present in a gap between the rotating component and the fixed component; wherein the lubricant contains at least one compound selected from the group consisting of aliphatic ethers having one or more ether bonds and a total carbon number of 24 to 39.Type: ApplicationFiled: February 24, 2006Publication date: August 3, 2006Inventors: Takanori Shiraishi, Katsushi Hirata, Hideaki Ohno
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Publication number: 20060120642Abstract: The invention provides a hydrodynamic bearing device, comprising at least one of a shaft structure and a sleeve having a dynamic pressure-generating mechanism, and a lubricant present in a gap between the shaft structure and the sleeve; wherein the lubricant contains a diester with a total carbon number of 20-28 obtainable by a divalent alcohol that has at least one ether bond, and one or more types of C6 to C10 saturated monovalent fatty acid.Type: ApplicationFiled: December 6, 2005Publication date: June 8, 2006Inventors: Katsushi Hirata, Hideaki Ohno, Takanori Shiraishi