Patents by Inventor Aino Hasegawa
Aino Hasegawa 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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Publication number: 20230280592Abstract: A light guide member (300) includes a boundary surface (304) configured to reflect image light guided to the boundary surface (304) and emit the image light outside the light guide member (300), an opposing surface (306) parallel to the boundary surface (304), the opposing surface (306) facing the boundary surface (304), a first inclined surface (305) having an inclination in which a distance between the first inclined surface (305) and the boundary surface (304) decreases in a guiding direction of the image light, and a second inclined surface (307) between the opposing surface (306) and the first inclined surface (305), the second inclined surface (307) inclined at a different angle with the first inclined surface (305) in the guiding direction.Type: ApplicationFiled: June 9, 2021Publication date: September 7, 2023Inventors: Naoki NAKAMURA, Masahiro ITOH, Susumu MOMMA, Shigenobu HIRANO, Yoshifumi SUDOH, Shun OKAZAKI, Yasuo KATANO, Kenji KAMEYAMA, Norikazu IGARASHI, Masamichi YAMADA, Aino HASEGAWA, Takashi MAKI
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Patent number: 11656461Abstract: A head-mounted display device includes a display element to display an image; a light guide member to emit the image displayed on the display element to an eye of a wearer; a housing including an optical system to guide image light of the image displayed on the display element to the light guide member; and an adjustment member provided on a side of the light guide member opposite to the optical system, and to bend the housing on a side opposite to a face of the wearer.Type: GrantFiled: November 17, 2020Date of Patent: May 23, 2023Assignee: RICOH COMPANY, LTD.Inventors: Aino Hasegawa, Shigenobu Hirano, Yasuo Katano, Kenji Kameyama, Norikazu Igarashi, Naoki Nakamura, Yoshifumi Sudoh, Masahiro Itoh, Shun Okazaki, Susumu Momma
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Publication number: 20230003931Abstract: A light guide includes light guiding members including first and second light guiding members, an optical entrance having a plane on which the light is incident, a light guiding unit to guide the light incident on the optical entrance with repeated reflection, a light beam ejection unit to eject the light to an outside of the light guide, and an extraction unit to reflect the light guided by the light guiding unit toward the light beam ejection unit. The light guiding members guide and eject a light, and the second light guiding member is bonded to, at least, the light guiding unit of the first light guiding member.Type: ApplicationFiled: January 6, 2021Publication date: January 5, 2023Inventors: Naoki NAKAMURA, Masahiro ITOH, Yoshifumi SUDOH, Susumu MOMMA, Shun OKAZAKI, Shigenobu HIRANO, Yasuo KATANO, Kenji KAMEYAMA, Norikazu IGARASHI, Aino HASEGAWA
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Patent number: 11535828Abstract: Provided is a three-dimensional tissue, including: a first cellular region including cells of a first type; and a second cellular region including cells of a second type different from the first type, wherein the cells of the first type are cells that emit light by chemiluminescence, bioluminescence, or fluorescence in response to an external stimulus.Type: GrantFiled: May 10, 2017Date of Patent: December 27, 2022Assignee: RICOH COMPANY, LTD.Inventors: Waka Lin, Aino Hasegawa, Natsuko Hemmi, Satoshi Izumi, Shusaku Shiomoto
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Publication number: 20220252838Abstract: A lens unit includes: a lens group including: an object-side lens closest to an object side in the lens group; an image-side lens closest to an image side in the lens group; and an intermediate lens between the object-side lens and the image-side lens, the object-side lens, the image-side lens, and the intermediate lens being arranged along an optical axis; a first holder holding an edge surface of the object-side lens and an edge surface of the intermediate lens; and a second holder separate from the first holder, the second holder holding the edge surface of the intermediate lens and an edge surface of the image-side lens.Type: ApplicationFiled: January 31, 2022Publication date: August 11, 2022Inventors: Yoshifumi SUDOH, Yasuo KATANO, Shigenobu HIRANO, Masahiro ITOH, Naoki NAKAMURA, Susumu MOMMA, Shun OKAZAKI, Masamichi YAMADA, Kenji KAMEYAMA, Norikazu IGARASHI, Aino HASEGAWA, Takashi MAKI
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Publication number: 20220057640Abstract: A virtual image display device includes: an image display element that displays an image to be displayed as a virtual image; a propagation optical system that propagates light from the image display element; and a light guide member that guides the light propagated by the propagation optical system. The light guide member includes: a light beam incident part that introduces light including image information from the propagation optical system into the light guide member; an image extractor that extracts the light including image information from an inside of the light guide member; and an image emitter that emits the light including image information to an outside of the light guide member. The propagation optical system includes one or more optical members each having a curved surface shape that is non-rotationally symmetric with respect to an optical axis.Type: ApplicationFiled: March 18, 2020Publication date: February 24, 2022Inventors: Naoki NAKAMURA, Shiori OHSUGI, Shigenobu HIRANO, Yasuo KATANO, Kenji KAMEYAMA, Norikazu IGARASHI, Aino HASEGAWA, Satomi TANAKA, Masahiro ITOH, Yoshifumi SUDOH, Susumu MOMMA, Shun OKAZAKI
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Publication number: 20220026716Abstract: A propagation optical system includes: a first optical system; an intermediate optical element; and a second optical system. The first optical system, the intermediate optical element, and the second optical system being sequentially arranged in a direction from the image display element toward the light guide member along an optical axis. The intermediate optical element has a non-rotationally symmetric curved surface, of which shape is non-rotationally symmetric about the optical axis. A cross-sectional shape, of the non-rotationally symmetric curved surface, in a first plane including the optical axis is non-arc shape. The first plane is a plane in which the non-rotationally symmetric surface has a strongest positive power among planes including the optical axis. The propagation optical system is configured to form, between the first optical system and the second optical system, an intermediate image corresponding to an image displayed on the image display element.Type: ApplicationFiled: July 19, 2021Publication date: January 27, 2022Inventors: Yoshifumi SUDOH, Naoki NAKAMURA, Masahiro ITOH, Susumu MOMMA, Shun OKAZAKI, Shigenobu HIRANO, Yasuo KATANO, Kenji KAMEYAMA, Norikazu IGARASHI, Aino HASEGAWA, Takashi MAKI, Masamichi YAMADA, Takemasa TSUTSUI
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Publication number: 20210165221Abstract: A head-mounted display device includes a display element to display an image; a light guide member to emit the image displayed on the display element to an eye of a wearer; a housing including an optical system to guide image light of the image displayed on the display element to the light guide member; and an adjustment member provided on a side of the light guide member opposite to the optical system, and to bend the housing on a side opposite to a face of the wearer.Type: ApplicationFiled: November 17, 2020Publication date: June 3, 2021Inventors: Aino HASEGAWA, Shigenobu HIRANO, Yasuo KATANO, Kenji KAMEYAMA, Norikazu IGARASHI, Naoki NAKAMURA, Yoshifumi SUDOH, Masahiro ITOH, Shun OKAZAKI, Susumu MOMMA
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Patent number: 10339896Abstract: A head-mounted display apparatus (1) includes an image display part (10) configured to display an image, an optical unit (20, 30, 50) configured to lead the image to an eye of a wearer of the display apparatus (1), a light intensity detector (60) configured to detect light intensity (A) of external light, a dimmer filter (40) configured to vary transmittance to adjust the intensity (B) of the external light reaching the eye of the wearer, and a controller (70) configured to adjust the transmittance of the dimmer filter (40) and the light intensity (C) of a light source of the image display part (10) based on the light intensity (A) of the external light obtained by the light intensity detector (60).Type: GrantFiled: January 12, 2016Date of Patent: July 2, 2019Assignee: Ricoh Company, Ltd.Inventors: Yuuma Usui, Shigenobu Hirano, Ikue Kawashima, Yasuo Katano, Aino Hasegawa, Atsushi Ohshima
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Publication number: 20190177688Abstract: Provided is a three-dimensional tissue, including: a first cellular region including cells of a first type; and a second cellular region including cells of a second type different from the first type, wherein the cells of the first type are cells that emit light by chemiluminescence, bioluminescence, or fluorescence in response to an external stimulus.Type: ApplicationFiled: May 10, 2017Publication date: June 13, 2019Inventors: Waka LIN, Aino HASEGAWA, Natsuko HEMMI, Satoshi IZUMI, Shusaku SHIOMOTO
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Publication number: 20170345391Abstract: A head-mounted display apparatus (1) includes an image display part (10) configured to display an image, an optical unit (20, 30, 50) configured to lead the image to an eye of a wearer of the display apparatus (1), a light intensity detector (60) configured to detect light intensity (A) of external light, a dimmer filter (40) configured to vary transmittance to adjust the intensity (B) of the external light reaching the eye of the wearer, and a controller (70) configured to adjust the transmittance of the dimmer filter (40) and the light intensity (C) of a light source of the image display part (10) based on the light intensity (A) of the external light obtained by the light intensity detector (60).Type: ApplicationFiled: January 12, 2016Publication date: November 30, 2017Applicant: Ricoh Company, Ltd.Inventors: Yuuma USUI, Shigenobu HIRANO, Ikue KAWASHIMA, Yasuo KATANO, Aino HASEGAWA, Atsushi OHSHIMA
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Publication number: 20170267975Abstract: Provided is a three-dimensional culture structure that is excellent in cell adhesion and cell stretching and can be produced efficiently. The three-dimensional culture structure includes cells, a cell support material configured to support the cells, and bioaffinity particles. In a preferable mode, the bioaffinity particles are exposed from at least part of the surface of the cell support material, or the bioaffinity particles are protruded from the cell support material, or a surface area occupation rate at which the bioaffinity particles are exposed is 20% or greater of the entire surface of the three-dimensional culture structure, or the bioaffinity particles are dispersed in the cell support material.Type: ApplicationFiled: March 15, 2017Publication date: September 21, 2017Applicant: RICOH COMPANY, LTD.Inventors: Aino Hasegawa, Daisuke Takagi, Shigeo Hatada, Yuuma Usui, Chihiro Kubo, Shusaku Shiomoto, Waka Lin
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Patent number: 9102138Abstract: Using an intermediate transfer body onto which a conductive recording liquid containing water that is ejected by heads is provided; and a potential applying unit which applies a potential which can electrolyze the water within the conductive recording liquid which is ejected from the heads and which temporarily bridges between the heads and the intermediate transfer body, the potential applying unit applies a potential between the intermediate transfer body and electrodes which are in contact with the recording liquid in supplying units which supply the recording liquid to the heads.Type: GrantFiled: November 1, 2012Date of Patent: August 11, 2015Assignee: Ricoh Company, Ltd.Inventors: Ryota Suzuki, Takeo Tsukamoto, Hisayoshi Ohshima, Aino Hasegawa, Hideomi Sakuma, Manabu Seo, Hiroyuki Yamashita, Yuuma Usui, Takahiko Matsumoto, Takeshi Hihara
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Patent number: 9010915Abstract: Disclosed is an aqueous ink composition, including an aqueous solvent, a coloring agent dissolved or dispersed in the aqueous solvent, an ABA-type amphipathic polymer including a hydrophobic segment A and a hydrophilic segment B, and an anionic surfactant configured to dissolve or disperse the ABA-type amphipathic polymer in the aqueous solvent, wherein a viscosity of the aqueous ink composition is changed depending on a pH thereof.Type: GrantFiled: August 17, 2012Date of Patent: April 21, 2015Assignee: Ricoh Company, Ltd.Inventors: Yuuma Usui, Takeo Tsukamoto, Aino Hasegawa, Hideomi Sakuma, Manabu Seo, Hiroyuki Yamashita, Ryota Suzuki, Hisayoshi Ohshima, Takahiko Matsumoto, Shigeo Takeuchi, Takeshi Hihara
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Patent number: 8944556Abstract: Disclosed is an image forming apparatus including a head configured to discharge an aqueous recording liquid onto a recording medium; and a coating unit configured to apply a process liquid onto the recording medium, wherein the process liquid is formed by emulsifying, by a first surfactant, water including a water-soluble polymer and a low polarity solvent which is not compatible with the water, wherein the water and the low polarity solvent are emulsified as a W/O emulsion in which the water is in a dispersed phase and the low polarity solvent is in a continuous phase.Type: GrantFiled: August 19, 2013Date of Patent: February 3, 2015Assignee: Ricoh Company, Ltd.Inventors: Takeshi Hihara, Yuuma Usui, Takeo Tsukamoto, Manabu Seo, Takahiko Matsumoto, Hiroyuki Yamashita, Hideomi Sakuma, Aino Hasegawa, Ryota Suzuki, Hisayoshi Ohshima, Shigeo Takeuchi, Mizuki Otagiri
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Patent number: 8919946Abstract: An image forming apparatus with a voltage applying unit between a recording head and an intermediate transfer drum is capable of activating polyvalent metal ions inactivated in advance in jetted recording liquid without liquid activators independent of the recording liquid for sufficient flocculation on the drum. When the jetted recording liquid temporarily bridges the head and the drum, electrolysis of the recording liquid by the voltage applied instantly leads to generation of hydrogen ions on the drum, which triggers a sequence of reactions in the recording liquid of activation of polyvalent metal ions, cross-link between the activated polyvalent metal ions and anionic polymer, and increase in viscosity on the drum.Type: GrantFiled: May 2, 2011Date of Patent: December 30, 2014Assignee: Ricoh Company, Ltd.Inventors: Ryota Suzuki, Yuuma Usui, Takeo Tsukamoto, Hideomi Sakuma, Aino Hasegawa, Manabu Seo, Takeshi Orito
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Patent number: 8870350Abstract: An image forming device includes a head including a nozzle that discharges an electrically-conductive recording liquid in accordance with a driving signal; an intermediate transfer body on which the recording liquid discharged by the head is applied; a voltage apply unit that applies a voltage between the intermediate transfer body and the head, so as to decompose the electrically-conductive recording liquid by electrolysis; a transfer unit that transfers an image supported on the intermediate transfer body onto a recording material; and a discharging control unit that generates the driving signal that causes the electrically-conductive recording liquid to be discharged from the nozzle. The discharging control unit generates the driving signal so that a position of a meniscus is placed outside the nozzle during a time interval in which the recording liquid temporarily bridges between the head and the intermediate transfer body.Type: GrantFiled: April 12, 2012Date of Patent: October 28, 2014Assignee: Ricoh Company, Ltd.Inventors: Ryota Suzuki, Takeo Tsukamoto, Takeshi Orito, Manabu Seo, Hideomi Sakuma, Aino Hasegawa, Hiroyuki Yamashita, Yuuma Usui, Hisayoshi Ohshima, Takahiko Matsumoto
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Publication number: 20140240422Abstract: Using an intermediate transfer body onto which a conductive recording liquid containing water that is ejected by heads is provided; and a potential applying unit which applies a potential which can electrolyze the water within the conductive recording liquid which is ejected from the heads and which temporarily bridges between the heads and the intermediate transfer body, the potential applying unit applies a potential between the intermediate transfer body and electrodes which are in contact with the recording liquid in supplying units which supply the recording liquid to the heads.Type: ApplicationFiled: November 1, 2012Publication date: August 28, 2014Inventors: Ryota Suzuki, Takeo Tsukamoto, Hisayoshi Ohshima, Aino Hasegawa, Hideomi Sakuma, Manabu Seo, Hiroyuki Yamashita, Yuuma Usui, Takahiko Matsumoto, Takeshi Hihara
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Patent number: 8746873Abstract: A disclosed image forming apparatus includes a recording head having a nozzle capable of ejecting inductive ink including water, a first intermediate transfer body having a conductive surface on which an ink image is to be formed by temporarily forming a liquid-column bridge between the conductive surface and the nozzle, the liquid-column bridge being made of the inductive ink, a voltage application unit applying a voltage between the inductive ink and the conductive surface so that water included in the liquid-column bridge is electrolyzed, and a transfer unit transferring an ink image formed on the first intermediate transfer body to a recording medium.Type: GrantFiled: November 5, 2009Date of Patent: June 10, 2014Assignee: Ricoh Company, Ltd.Inventors: Takeo Tsukamoto, Yuuma Usui, Manabu Seo, Aino Hasegawa, Takeshi Orito, Ryota Suzuki
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Publication number: 20140071196Abstract: Disclosed is an image forming apparatus including a head configured to discharge an aqueous recording liquid onto a recording medium; and a coating unit configured to apply a process liquid onto the recording medium, wherein the process liquid is formed by emulsifying, by a first surfactant, water including a water-soluble polymer and a low polarity solvent which is not compatible with the water, wherein the water and the low polarity solvent are emulsified as a W/O emulsion in which the water is in a dispersed phase and the low polarity solvent is in a continuous phase.Type: ApplicationFiled: August 19, 2013Publication date: March 13, 2014Applicant: RICHO COMPANY, LTD.Inventors: Takeshi Hihara, Yuuma Usui, Takeo Tsukamoto, Manabu Seo, Takahiko Matsumoto, Hiroyuki Yamashita, Hideomi Sakuma, Aino Hasegawa, Ryota Suzuki, Hisayoshi Ohshima, Shigeo Takeuchi, Mizuki Otagiri