Patents by Inventor Tomohiro Kubota

Tomohiro Kubota 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).

  • Patent number: 11506994
    Abstract: A toner cartridge include a convex portion and a conveyance drive gear. There is a protrusion which protrudes from the center of the conveyance drive gear. Further, there is a hole at a rear side of the convex portion. The protrusion is to be inserted into the hole which is at the rear side of the convex portion.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: November 22, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Manabu Hamada, Masato Tsuji, Masanari Fujita
  • Patent number: 11508514
    Abstract: A multilayer inductor component includes an element body that is an insulator and a coil in which a plurality of coil conductor layers that extend along planes in the element body are electrically connected to each other. Also, each of the coil conductor layers includes metal part and glass part, and the glass part include internal glass portion that is entirely included in the metal part.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: November 22, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tomohiro Kido, Masahiro Kubota, Tomonori Sakata, Kenta Kondo, Shimpei Tanabe, Yoshiyuki Oota
  • Publication number: 20220350248
    Abstract: Methods of forming structures including a photoresist underlayer and an adhesion layer and structures including the photoresist underlayer and adhesion layer are disclosed. Exemplary methods include forming the photoresist underlayer and forming an adhesion layer using a cyclical deposition process. The adhesion layer can be formed within the same reaction chamber used to form the photoresist underlayer.
    Type: Application
    Filed: April 19, 2022
    Publication date: November 3, 2022
    Inventors: Zecheng Liu, Takashi Yoshida, Tomohiro Kubota, Hideaki Fukuda
  • Publication number: 20220348534
    Abstract: An organic compound having a hole-transport property and a low refractive index is provided. An organic compound represented by General Formula (G1) is provided. In the formula, Ar12 represents an aryl group having 6 to 10 carbon atoms in a ring and includes at least one branched-chain or cyclic alkyl group having 3 to 12 carbon atoms. The total number of carbon atoms of the branched-chain or cyclic alkyl group having 3 to 12 carbon atoms in Ar12 is 6 to 36. Ar11 and Ar21 each represent a substituted or unsubstituted arylene group having 6 to 13 carbon atoms in a ring. Ar22 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring. In addition, n and m each independently represent an integer of 0 or 1. Ar1 represents a phenyl group including at least one alkyl group having 1 to 6 carbon atoms. Ar2 represents a phenyl group including at least one alkyl group having 1 to 6 carbon atoms, or an alkyl group having 1 to 4 carbon atoms.
    Type: Application
    Filed: March 29, 2022
    Publication date: November 3, 2022
    Inventors: Tomohiro KUBOTA, Takao TOSU, Takeyoshi WATABE, Airi UEDA, Yuta KAWANO, Nobuharu OHSAWA, Satoshi SEO
  • Patent number: 11482687
    Abstract: A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: October 25, 2022
    Inventors: Shunpei Yamazaki, Takeyoshi Watabe, Tomohiro Kubota, Airi Ueda, Satoshi Seo, Nobuharu Ohsawa, Yuko Kubota
  • Publication number: 20220328763
    Abstract: An organic compound having a hole-transport property and a low refractive index is provided. An organic compound represented by General Formula (G1) shown below is provided. In General Formula (G1), Ar1 represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms in a ring, n represents an integer of 0 or 1, and Ar2 represents an aryl group having 6 to 10 carbon atoms in a ring and includes at least one branched-chain or cyclic alkyl group having 3 to 12 carbon atoms. The total number of carbon atoms of the branched-chain or cyclic alkyl group in Ar2 is more than or equal to 6. R1 to R4 each independently represent an alkyl group having 1 to 6 carbon atoms. R11 to R14 and R21 to R24 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms. Any one of R15 to R18 and any one of R25 to R28 each represent a bond directly bonded to a nitrogen atom, and the others each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.
    Type: Application
    Filed: March 16, 2022
    Publication date: October 13, 2022
    Inventors: Tomohiro Kubota, Takao Tosu, Takeyoshi Watabe, Airi Ueda, Yuta Kawano, Nobuharu Ohsawa, Satoshi Seo
  • Patent number: 11442250
    Abstract: An imaging lens includes a first lens group having positive refractive power; a second lens group; and a third lens group having negative refractive power, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens. The second lens group includes a fourth lens and a fifth lens. The third lens group includes a sixth lens and a seventh lens having negative refractive power. The first lens is formed in a meniscus shape at a paraxial region thereof. The fourth lens is formed in a meniscus shape at a paraxial region thereof. The seventh lens is formed in a meniscus shape at a paraxial region thereof. The seventh lens has a specific focal length. The second lens is disposed away from the third lens by a specific distance.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: September 13, 2022
    Assignee: TOKYO VISIONARY OPTICS CO., LTD.
    Inventors: Yoji Kubota, Kenichi Kubota, Hitoshi Hirano, Tomohiro Yonezawa
  • Patent number: 11428900
    Abstract: An imaging lens includes a first lens; a second lens; a third lens; a fourth lens; a fifth lens; a sixth lens; and a seventh lens, arranged in this order from an object side to an image plane side. The first lens is formed in a meniscus shape at a paraxial region thereof. The third lens is formed in a shape so that a surface thereof directing to the image plane side is concave at a paraxial region thereof. The fourth lens is formed in a meniscus shape at a paraxial region thereof. The seventh lens has a specific focal length.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: August 30, 2022
    Assignee: TOKYO VISIONARY OPTICS CO., LTD.
    Inventors: Yoji Kubota, Kenichi Kubota, Hitoshi Hirano, Tomohiro Yonezawa
  • Publication number: 20220254562
    Abstract: A multilayer inductor component includes an element body that is an insulator and a coil in which a plurality of coil conductor layers that extend along planes in the element body are electrically connected to each other. Also, each of the coil conductor layers includes metal part and glass part, and the glass part include internal glass portion that is entirely included in the metal part.
    Type: Application
    Filed: April 28, 2022
    Publication date: August 11, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Tomohiro KIDO, Masahiro KUBOTA, Tomonori SAKATA, Kenta KONDO, Shimpei TANABE, Yoshiyuki OOTA
  • Publication number: 20220251402
    Abstract: The present disclosure keeps a topcoat film 3 from having a dent 6 in a portion of its surface corresponding to a pinhole 4 of a resin molded product 1. A method of the present disclosure includes: applying an undercoat material to a resin molded product 1 to form an undercoat film 2; applying a topcoat material to a surface of the undercoat film 2 to form a topcoat film 3; and thermally curing the topcoat film 3. A coating material that contains a base resin having a larger volume expansion coefficient than the resin molded product 1 and a granular filler having a smaller volume expansion coefficient than the base resin and a number-average particle size of 2 ?m or more to 12 ?m or less is used as the undercoat material.
    Type: Application
    Filed: December 23, 2021
    Publication date: August 11, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masaya MINATO, Hiroshi KUBOTA, Masaaki AKAMINE, Yushi MATSUDA, Kazuhiro FURUTA, Takahiro TANAKA, Akira ANDOU, Tomohiro NAGANO
  • Publication number: 20220204438
    Abstract: A novel organic compound is provided. A novel organic compound having a carrier-transport property is provided. A novel organic compound having a hole-transport property is provided. An organic compound having a low refractive index is provided. An organic compound having a low refractive index and a carrier-transport property is provided. An organic compound having a low refractive index and a hole-transport property is provided. An organic compound represented by the following general formula (G1) is provided.
    Type: Application
    Filed: May 9, 2019
    Publication date: June 30, 2022
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tomohiro KUBOTA, Takeyoshi WATABE, Satoshi SEO, Nobuharu OHSAWA
  • Publication number: 20220107587
    Abstract: A toner cartridge include a convex portion and a conveyance drive gear. There is a protrusion which protrudes from the center of the conveyance drive gear. Further, there is a hole at a rear side of the convex portion. The protrusion is to be inserted into the hole which is at the rear side of the convex portion.
    Type: Application
    Filed: December 15, 2021
    Publication date: April 7, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Tomohiro KUBOTA, Naoki NAKATAKE, Yoshiyuki SHIMIZU, Shoh TSURITANI, Manabu HAMADA, Masato TSUJI, Masanari FUJITA
  • Publication number: 20220108881
    Abstract: Methods of forming silicon nitride on a sidewall of a feature are disclosed. Exemplary methods include providing a substrate comprising a feature comprising a sidewall surface and a surface adjacent the sidewall surface, forming a silicon oxide layer overlying the sidewall surface and the surface adjacent the sidewall surface, using a cyclical deposition process, depositing a silicon nitride layer overlying the silicon oxide layer, and exposing the silicon nitride layer to activated species generated from a hydrogen-containing gas. Exemplary methods can additionally include selectively removing a portion of the silicon nitride layer. Structures formed using the methods and systems for performing the methods are also disclosed.
    Type: Application
    Filed: October 1, 2021
    Publication date: April 7, 2022
    Inventors: Tomohiro Kubota, Shinya Ueda
  • Patent number: 11275325
    Abstract: An image forming apparatus includes an image bearer, a rotation shaft, a developing device, and a supply portion. The developing device includes a developing device main portion that rotates around the rotation shaft between a developing position and a retracted position and includes a developer, a developer bearer to face or be away from the image bearer depending on whether the developing device main portion is at the developing position or the retracted position, a replenishment portion having a replenishment port with an opposite surface formed by an arc drawn around the rotation shaft to replenish the developer, and a non-rotating portion. The supply portion has a supply port with an opposite surface formed by an arc drawn around the rotation shaft and facing the opposite surface of the replenishment port. The supply port communicates the replenishment port and supplies the developer to the developing device through the replenishment port.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: March 15, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hotaru Hashikawa, Yoshihiro Fujiwara, Nobuo Takami, Ryusuke Mase, Kazuki Yogosawa, Tomohiro Kubota, Naohiro Kawashima, Yuuki Tsuchiya
  • Publication number: 20220077391
    Abstract: A light-emitting device with high emission efficiency and low driving voltage is provided. A light-emitting apparatus, an electronic device, and a lighting device with low power consumption are provided. The following organic compound is provided: the organic compound has an arylamine structure; and when the organic compound is deposited to be a film, the ordinary refractive index of the deposited film with respect to light with a wavelength of 458 nm is greater than or equal to 1.50 and less than or equal to 1.75, the birefringence ?n of the deposited film with respect to light with a wavelength of 458 nm is greater than or equal to 0 and less than or equal to 0.008, or the alignment order parameter of the deposited film with respect to light with a wavelength corresponding to the longest wavelength where an absorption peak appears in the absorption spectrum is greater than or equal to ?0.07 and less than or equal to 0.00.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 10, 2022
    Inventors: Nobuharu OHSAWA, Satoshi SEO, Takeyoshi WATABE, Airi UEDA, Tomohiro KUBOTA, Takashi HIRAHARA
  • Patent number: 11231663
    Abstract: A toner cartridge include a convex portion and a conveyance drive gear. There is a protrusion which protrudes from the center of the conveyance drive gear. Further, there is a hole at a rear side of the convex portion. The protrusion is to be inserted into the hole which is at the rear side of the convex portion.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: January 25, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Manabu Hamada, Masato Tsuji, Masanari Fujita
  • Publication number: 20210395245
    Abstract: An object is to provide an organic compound with a low refractive index. Alternatively, a novel organic compound with a low refractive index and an electron-donating property is provided. Alternatively, an EL device with high emission efficiency is provided. An organic compound having an arylamine skeleton including a fluorine atom or an acridine skeleton including a fluorine atom and an EL device using the organic compound are provided. The EL device preferably includes a hole-injection layer containing the organic compound having an arylamine skeleton including a fluorine atom or an acridine skeleton including a fluorine atom and a substance showing an electron-accepting property with respect to the organic compound.
    Type: Application
    Filed: November 12, 2019
    Publication date: December 23, 2021
    Inventors: Takeyoshi WATABE, Tomohiro KUBOTA, Satoshi SEO
  • Publication number: 20210317069
    Abstract: To provide a novel arylamine compound with a low refractive index. The provided arylamine compound includes at least one aromatic group. The aromatic group includes a first benzene ring, a second benzene ring, a third benzene ring, and at least three alkyl groups. The first benzene ring, the second benzene ring, and the third benzene ring are directly bonded in this order. The first benzene ring is bonded to nitrogen of amine. The first benzene ring may further include a substituted or unsubstituted phenyl group. The second benzene ring or the third benzene ring may further include an alkylated phenyl group. Each of first positions and third positions of two or more of the first to third benzene rings is independently bonded to another benzene ring, a benzene ring of the alkylated phenyl group, any of the at least three alkyl groups, or the nitrogen of the amine.
    Type: Application
    Filed: March 26, 2021
    Publication date: October 14, 2021
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Satoshi SEO, Nobuharu OHSAWA, Tomohiro KUBOTA, Takeyoshi WATABE, Airi UEDA, Yasushi KITANO, Takao TOSU
  • Publication number: 20210143352
    Abstract: A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.
    Type: Application
    Filed: November 6, 2020
    Publication date: May 13, 2021
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Takeyoshi WATABE, Tomohiro KUBOTA, Airi UEDA, Satoshi SEO, Nobuharu OHSAWA, Yuko KUBOTA
  • Publication number: 20210080856
    Abstract: An image forming apparatus includes an image bearer, a rotation shaft, a developing device, and a supply portion. The developing device includes a developing device main portion that rotates around the rotation shaft between a developing position and a retracted position and includes a developer, a developer bearer to face or be away from the image bearer depending on whether the developing device main portion is at the developing position or the retracted position, a replenishment portion having a replenishment port with an opposite surface formed by an arc drawn around the rotation shaft to replenish the developer, and a non-rotating portion. The supply portion has a supply port with an opposite surface formed by an arc drawn around the rotation shaft and facing the opposite surface of the replenishment port. The supply port communicates the replenishment port and supplies the developer to the developing device through the replenishment port.
    Type: Application
    Filed: September 15, 2020
    Publication date: March 18, 2021
    Inventors: Hotaru HASHIKAWA, Yoshihiro FUJIWARA, Nobuo TAKAMI, Ryusuke MASE, Kazuki YOGOSAWA, Tomohiro KUBOTA, Naohiro KAWASHIMA, Yuuki TSUCHIYA