Patents by Inventor Akio Ito
Akio Ito 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: 11951677Abstract: A three dimensional manufactured product is manufactured A speed of filing an uncured light curing resin in a space for a next layer is enhanced, to improve a manufacturing speed. One surface of a container housing a light curing resin is configured by a gas-permeable sheet that faces the light curing resin, and transmits irradiation light of a light irradiating apparatus, and a light transmitting plate disposed at an outer side of the container from the gas permeable member. A pressurizing chamber controllable in pressure by a pressure controlling apparatus is defined between the gas-permeable sheet and the light transmitting plate. At moving a manufacturing stage, an inside of the pressurizing chamber is de-pressurized to cause the gas-permeable sheet to perform concave surface deformation, and at a time of performing light irradiation, gas in the pressurizing chamber is caused to permeate into the light curing resin by pressurizing.Type: GrantFiled: April 28, 2021Date of Patent: April 9, 2024Assignee: Canon Kabushiki KaishaInventors: Takashi Arai, Yasuhiro Sekine, Akio Kashiwazaki, Toshiki Ito
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Patent number: 11890789Abstract: A web forming apparatus includes a drum portion and a second web forming unit. The drum portion has an accommodating chamber capable of accommodating fragments, and accommodating powder supplied from a first supplying unit. The second web forming unit forms a second web by letting a mixture containing the fragments and the powder falling from the drum portion accumulate. The first supplying unit includes a storing chamber for storing the powder and an outlet portion provided below the storing chamber. The powder goes out of the storing chamber via the outlet portion. The drum portion has meshes formed in a net demarcating the accommodating chamber. The powder is able to pass through the meshes. The outlet portion is provided vertically over the net of the drum portion.Type: GrantFiled: June 16, 2022Date of Patent: February 6, 2024Assignee: Seiko Epson CorporationInventors: Hisashi Koike, Satomi Yoshioka, Akio Ito
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Publication number: 20230320286Abstract: Provided is a mushroom cultivation medium that easily maintains its shape and that is easy to handle. The mushroom cultivation medium includes cellulose fibers, a binder binding the cellulose fibers to each other, and wood chips mixed with the cellulose fibers.Type: ApplicationFiled: April 10, 2023Publication date: October 12, 2023Inventors: Hisashi KOIKE, Shunichi SEKI, Akio ITO, Toshiaki MIKOSHIBA, Satomi YOSHIOKA, Takuya MIYAKAWA
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Publication number: 20230318255Abstract: The laser module includes a QCL element and a support member. The QCL element has a first end surface located on a first side in a second direction orthogonal to a stacking direction and a second end surface located on a second side opposite to the first side in the second direction. The substrate has first to fourth substrate-surfaces. The support member has a first portion having a first surface facing at least a portion of the fourth substrate-surface, and a second portion having a second surface facing at least a portion of the first substrate-surface and a third surface located opposite to the second surface in the second direction. At least a part of the terahertz wave generated in the active layer is incident on the second surface of the support member through the substrate and is emitted from the third surface through the inside of the second portion.Type: ApplicationFiled: March 22, 2023Publication date: October 5, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Shohei HAYASHI, Kazuue FUJITA, Akio ITO, Atsushi NAKANISHI
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Publication number: 20230317867Abstract: A photodetection module includes a photodetector and a fixing member. The photodetector includes a semiconductor substrate, a mesa portion, a first contact layer, a second contact layer, and a first electrode formed in a planar shape on a major surface of the semiconductor substrate, and electrically connected to one of the first contact layer and the second contact layer. The fixing member includes an insulating substrate, and a first wiring formed in a planar shape on a major surface of the insulating substrate. A recessed portion is formed in the major surface of the insulating substrate, and at least a part of the mesa portion is disposed inside the recessed portion. The first electrode is electrically connected to the first wiring in a state where the first electrode is in surface contact with the first wiring.Type: ApplicationFiled: May 26, 2021Publication date: October 5, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tatsuo DOUGAKIUCHI, Akio ITO, Masahiro HITAKA, Tadataka EDAMURA
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Publication number: 20230307562Abstract: A photodetector includes: a semiconductor substrate; a mesa portion formed on a major surface of the semiconductor substrate to extend along an optical waveguide direction; a first contact layer; a second contact layer; a first electrode; and an air bridge wiring electrically connected to the first contact layer and the first electrode. When viewed in a direction perpendicular to the major surface of the semiconductor substrate, a length of the mesa portion in the optical waveguide direction is longer than a length of the mesa portion in a direction perpendicular to the optical waveguide direction. The air bridge wiring is led out from the first contact layer to one side in the direction perpendicular to the optical waveguide direction, and is bridged between the first contact layer and the first electrode.Type: ApplicationFiled: May 26, 2021Publication date: September 28, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tatsuo DOUGAKIUCHI, Akio ITO, Masahiro HITAKA, Tadataka EDAMURA
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Publication number: 20230253755Abstract: The laser module includes a QCL element, a diffraction grating unit including a movable diffraction grating, a first lens that transmits light emitted from an end surface of the QCL element and light returning from the movable diffraction grating to the QCL element, a second lens that transmits terahertz waves emitted from the QCL element, a first holder, and a package. The first holder has a support surface on which the QCL element is mounted and a side surface connected to the support surface and facing the first lens in a resonance direction. A distance from an intersection point between the side surface and the support surface to the end surface along the resonance direction is smaller than a distance between the intersection point and the first lens along the resonance direction.Type: ApplicationFiled: January 31, 2023Publication date: August 10, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tatsuo DOUGAKIUCHI, Akio ITO, Kazuue FUJITA
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Publication number: 20230198224Abstract: An optical device of one embodiment outputs light in a short-wavelength range such as a visible range. The optical device includes a UC layer, first and second light-confinement layers, and a resonance mode forming layer. The UC layer contains an upconversion material receiving excitation light in a first wavelength range and outputting light in a second wavelength range. The first light-confinement layer has a characteristic of reflecting part of the second wavelength-range light. The second light-confinement layer has a characteristic of reflecting part of the second wavelength-range light and transmitting the remainder, and is disposed such that the UC layer locates between the first and second light-confinement layers. The resonance mode forming layer locates between the UC layer and the first or second light-confinement layer, includes a base layer and plural modified refractive index regions, and forms a resonance mode of the second wavelength-range light.Type: ApplicationFiled: May 27, 2021Publication date: June 22, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yoshitaka KUROSAKA, Kazuyoshi HIROSE, Yuu TAKIGUCHI, Akio ITO, Tadataka EDAMURA, Takahiko YAMANAKA, Shigeo HARA
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Publication number: 20230122259Abstract: An advertisement print method includes an advertisement information obtaining step of obtaining, by an advertisement processing apparatus, advertisement information input by an input apparatus, a transaction data selection step of selecting, by the advertisement processing apparatus, N transaction data associated with the advertisement information from a plurality of transaction data stored in an e-commerce database based on the advertisement information and orderer information and receiver information stored in the e-commerce database, N being an integer not less than 1, and a print step of printing, by a print apparatus, an advertisement based on the advertisement information on packing materials of N products specified by the N selected transaction data.Type: ApplicationFiled: October 17, 2022Publication date: April 20, 2023Inventors: Tetsuji FUJITA, Hisashi KOIKE, Satoru YANAGI, Tokuro MIYANISHI, Jun TAKIZAWA, Tomoaki NAKAMURA, Akio ITO, Toshiaki MIKOSHIBA
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Publication number: 20230073306Abstract: Provided is a culture sheet including: a fiber layer including cellulose fibers and a natural bonding agent that bonds the cellulose fibers; and nonwoven paper that supports the fiber layer.Type: ApplicationFiled: September 2, 2022Publication date: March 9, 2023Inventors: Hisashi KOIKE, Akio ITO, Toshiaki MIKOSHIBA
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Publication number: 20230037691Abstract: A buffer material of the present disclosure is a material including cellulose fibers and a binding material that binds the cellulose fibers, in which the binding material is a natural component and a proportion of the binding material in the buffer material is 10.0% by mass or greater and 30.0% by mass or less. It is preferable that the buffer material of the present disclosure have a thickness of 1.0 mm or greater and 100 mm or less and that the buffer material have a density of 0.02 g/cm3 or greater and 0.20 g/cm3 or less. It is preferable that the binding material contain a shellac resin. It is preferable that a content of lignin in the cellulose fibers be 5.0% by mass or less.Type: ApplicationFiled: July 27, 2022Publication date: February 9, 2023Inventors: Jun TAKIZAWA, Tetsuji FUJITA, Akio ITO
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Publication number: 20230030197Abstract: A beating spectroscopy device includes: first and second quantum cascade lasers; a quantum cascade detector; and a sample holder configured to hold a sample on an optical path between the second quantum cascade laser and the quantum cascade detector. Lights from the first and second quantum cascade lasers are detected by the quantum cascade detector while a wavelength of the light from the second quantum cascade laser is changed to scan a frequency of a beating signal having a frequency in accordance with a wavelength difference between the lights from the first and second quantum cascade lasers.Type: ApplicationFiled: August 16, 2022Publication date: February 2, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tatsuo DOUGAKIUCHI, Akio ITO, Masahiro HITAKA, Tadataka EDAMURA, Naota AKIKUSA
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Publication number: 20220402175Abstract: A web forming apparatus includes a drum portion and a second web forming unit. The drum portion has an accommodating chamber capable of accommodating fragments, and accommodating powder supplied from a first supplying unit. The second web forming unit forms a second web by letting a mixture containing the fragments and the powder falling from the drum portion accumulate. The first supplying unit includes a storing chamber for storing the powder and an outlet portion provided below the storing chamber. The powder goes out of the storing chamber via the outlet portion. The drum portion has meshes formed in a net demarcating the accommodating chamber. The powder is able to pass through the meshes. The outlet portion is provided vertically over the net of the drum portion.Type: ApplicationFiled: June 16, 2022Publication date: December 22, 2022Inventors: Hisashi KOIKE, Satomi YOSHIOKA, Akio ITO
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Publication number: 20220311215Abstract: A quantum cascade laser includes a semiconductor substrate, an optical waveguide formed on a first surface of the semiconductor substrate, and a temperature adjusting member. The optical waveguide includes a first region and a second region located on one side with respect to the first region in the optical waveguide direction of the optical waveguide. The first region generates a first light having a first wavelength, and the second region generates a second light having a second wavelength. The optical waveguide generates an output light having a frequency corresponding to a difference between the first wavelength and the second wavelength by difference-frequency generation. A recess for suppressing heat transfer between the first region and the second region is formed at a second surface of the semiconductor substrate. The temperature adjusting member includes a first temperature adjusting member for adjusting the temperature of the second region.Type: ApplicationFiled: March 23, 2022Publication date: September 29, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Akio ITO, Kazuue FUJITA, Shohei HAYASHI, Tatsuo DOUGAKIUCHI
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Publication number: 20220293898Abstract: A method for manufacturing a carbon fiber sheet includes a mixing section that mixes a plurality of carbon fibers with a binding material that binds the carbon fibers, a depositing section that deposits a mixture of the carbon fibers and the binding material, and a forming section that forms a fiber sheet by heating a deposit deposited by the depositing section. The forming section includes a heating portion.Type: ApplicationFiled: March 10, 2022Publication date: September 15, 2022Inventors: Satomi YOSHIOKA, Naotaka HIGUCHI, Shunichi SEKI, Akio ITO
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Publication number: 20220209505Abstract: A laser module including a quantum cascade laser that includes a substrate having a main surface, a first clad layer provided on the main surface, an active layer provided on the first clad layer, and a second clad layer provided on the active layer, and a lens that has a lens plane disposed at a position facing the end surface of the active layer. An end surface of the active layer constitutes a resonator that causes light of a first frequency and light of a second frequency to oscillate, and the active layer is configured to generate a terahertz wave of a differential frequency between the first frequency and the second frequency. The substrate is in direct contact or indirect contact with the lens plane, and the end surface of the active layer is inclined with respect to a portion facing the end surface in the lens plane.Type: ApplicationFiled: December 16, 2020Publication date: June 30, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Kazuue FUJITA, Shohei HAYASHI, Hiroyasu FUJIWARA, Atsushi NAKANISHI, Akio ITO, Tatsuo DOUGAKIUCHI
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Patent number: D960006Type: GrantFiled: September 9, 2020Date of Patent: August 9, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Tatsuo Dougakiuchi, Akio Ito, Masahiro Hitaka, Tadataka Edamura
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Patent number: D960007Type: GrantFiled: September 10, 2020Date of Patent: August 9, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Tatsuo Dougakiuchi, Akio Ito, Masahiro Hitaka, Tadataka Edamura
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Patent number: D960008Type: GrantFiled: September 11, 2020Date of Patent: August 9, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Tatsuo Dougakiuchi, Akio Ito, Masahiro Hitaka, Tadataka Edamura
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Patent number: D960009Type: GrantFiled: September 14, 2020Date of Patent: August 9, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Tatsuo Dougakiuchi, Akio Ito, Masahiro Hitaka, Tadataka Edamura