Patents by Inventor Junichi Watanabe

Junichi Watanabe 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).

  • Publication number: 20250085647
    Abstract: A polyester resin emulsion contains resin particles (S) containing an amorphous polyester resin (A) in which the carboxyl group of a polyester resin obtained by polycondensation of the alcohol component and the carboxylic acid component is neutralized by a basic substance and an aqueous medium where the resin particles (S) are dispersed, wherein the following relationship 1 is satisfied: 0.89 ? B / A ? 2.23 , where A represents an acid value of the amorphous polyester resin (A) and B represents an amount in mmol/g of cation derived from the basic substance.
    Type: Application
    Filed: August 26, 2024
    Publication date: March 13, 2025
    Applicant: Ricoh Company, Ltd.
    Inventors: Masahiro Yukikawa, Junichi Watanabe, Akinori Saitoh, Yuka Mizoguchi
  • Patent number: 12249768
    Abstract: Provided is an antenna device including an antenna array including a plurality of patch antennas arrayed in a grid, a first switch group including a first switch disposed on a wiring line connecting two adjacent patch antennas, and a second switch group including a second switch disposed on a wiring line between an antenna assembly formed by at least four adjacent patch antennas and a signal source connected to at least one patch antenna constituting the antenna assembly.
    Type: Grant
    Filed: November 22, 2023
    Date of Patent: March 11, 2025
    Assignee: NEC CORPORATION
    Inventors: Ryota Nihei, Junichi Funada, Kenji Wakafuji, Kazuyuki Hayashi, Kohei Yoshida, Shingo Watanabe, Kazushi Sugyo, Masakazu Ono, Fujio Okumura
  • Patent number: 12213377
    Abstract: Provided are an organic thin film transistor, an organic semiconductor film, a compound, an organic thin film transistor-forming composition, and a method of manufacturing the organic thin film transistor. The organic thin film transistor includes the organic semiconductor film. The organic semiconductor film includes a compound represented by a specific formula. The organic semiconductor film, the compound, and the organic thin film transistor-forming composition can be preferably used in the organic thin film transistor. The method of manufacturing the organic thin film transistor includes a step of forming an organic semiconductor film by applying the organic thin film transistor-forming composition to a substrate.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: January 28, 2025
    Assignees: FUJIFILM Corporation, The University of Tokyo
    Inventors: Eiji Fukuzaki, Tetsuya Watanabe, Yoshihisa Usami, Yukio Tani, Toshihiro Okamoto, Junichi Takeya
  • Publication number: 20250013163
    Abstract: A resin particle contains a resin B containing a component derived from at least one of polyethylene terephthalate or polybutylene terephthalate and a biomass-derived resin C containing a linear aliphatic alcohol with 2 to 4 carbon atoms and a linear aliphatic acid with 10 to 12 carbon atoms, wherein the resin particle has a core shell structure of a core resin and a shell resin, the core resin contains a crystalline resin, and the proportion of the sum of the resin B and the resin C to 100 percent by mass of the resin particle is 30 or greater percent by mass.
    Type: Application
    Filed: July 2, 2024
    Publication date: January 9, 2025
    Applicant: Ricoh Company, Ltd.
    Inventors: Suzuka Karato, Yuka Mizoguchi, Akio Takei, Junichi Watanabe, Shinya Nakayama
  • Publication number: 20250013161
    Abstract: A resin particle contains a binder resin containing a polyester resin containing polyethylene terephthalate and a diol component of propylene glycol and a release agent containing an ester wax.
    Type: Application
    Filed: June 26, 2024
    Publication date: January 9, 2025
    Applicant: Ricoh Company, Ltd.
    Inventors: akio Takei, Junichi Watanabe, Yuka Mizoguchi, Suzuka Karato, Shinya Nakayama
  • Publication number: 20240392064
    Abstract: A polyester resin emulsion contains resin particles(S), each containing a polyester resin (A) obtained by polycondensation of an alcohol component and a carboxylic acid component, and an aqueous medium in which the resin particles(S) are dispersed, wherein the alcohol component contains tri- or tetra-alcohol having a backbone of a linear or branched saturated fatty acid with a carbon number of 4 to 6, and the ratio (OHV/AV) of a hydroxyl value (OHV) of the polyester resin (A) to an acid value (AV) of the polyester resin (A) is from 0.20 to 0.60.
    Type: Application
    Filed: May 21, 2024
    Publication date: November 28, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Shinya Nakayama, Junichi Watanabe, Akinori Saitoh, Masahiro Yukikawa, akio Takei
  • Publication number: 20240384794
    Abstract: The present invention addresses the problem of providing a sealing device capable of achieving long-term electrical conductivity between a rotary shaft and a housing at low cost and in a space-saving manner. The problem is solved by a sealing device that is disposed in and seals a gap between an outer surface of a rotary shaft and an inner surface of a housing having a shaft hole into which the rotary shaft is inserted, the inner surface forming the shaft hole, and that can provide electrical conductivity between the housing and the rotary shaft pressed against the inner surface of the housing forming the shaft hole when the rotary shaft rotates.
    Type: Application
    Filed: July 12, 2022
    Publication date: November 21, 2024
    Applicant: NOK CORPORATION
    Inventors: Masayuki TANIDA, Kenichi YOSHIMURA, Junichi WATANABE, Hideaki NAGAHAMAYA
  • Publication number: 20240319624
    Abstract: A resin particle may comprise a binder resin, a crystalline polyester resin; and a release agent being in a plurality of domains, which have a domain diameter of 1 ?m or less; wherein more than 80% of a surface of each of the plurality of domains of the release agent is covered with the crystalline polyester resin, and a melting point of the crystalline polyester resin is higher than a melting point of the release agent.
    Type: Application
    Filed: March 22, 2024
    Publication date: September 26, 2024
    Inventors: Tsuneyasu NAGATOMO, Junichi WATANABE, Kohsuke SATOH, Yuka MIZOGUCHI
  • Patent number: 12078961
    Abstract: A toner includes a crystalline polyester resin and an amorphous polyester resin. A ratio of the storage modulus of the toner G? (To) at a temperature To to the storage modulus of the toner G? (To+3) at a temperature To+3 is greater than or equal to 10, in a case where the temperature To is within a range from 50° C. to 65° C.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: September 3, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuka Mizoguchi, Hiroshi Yamashita, Junichi Watanabe, Tomomi Harashima
  • Publication number: 20240228770
    Abstract: Resin particles, each include amorphous polyester resins, a crystalline polyester resin, and a release agent. The amorphous polyester resins include (i) an amorphous polyester resin including a sulfonic acid salt group-containing polyester resin and (ii) an amorphous polyester resin different from the amorphous polyester resin including the sulfonic acid salt group-containing polyester resin. The sulfonic acid salt group-containing polyester resin has a solubility parameter of from 10 to 13. Each of the resin particles has a core-shell structure including a core layer and a shell layer. The shell layer includes the (i) amorphous polyester resin including the sulfonic acid salt group-containing polyester resin.
    Type: Application
    Filed: January 3, 2024
    Publication date: July 11, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Akinori Saitoh, Junichi Watanabe, Yuka Mizoguchi, Masahiro Yukikawa
  • Publication number: 20240210845
    Abstract: An amorphous polyester resin includes an environmentally friendly component. An environmentally friendly component content of the amorphous polyester resin is 40% by mass or greater and 80% by mass or less. The amorphous polyester resin is a sulfo group-containing amorphous polyester resin. A sulfo group content of the sulfo group-containing amorphous polyester resin is 2 mol % or greater and 10 mol % or less.
    Type: Application
    Filed: December 18, 2023
    Publication date: June 27, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Junichi WATANABE, Akinori SAITOH, Masahiro YUKIKAWA, Akio TAKEI, Yuka MIZOGUCHI
  • Publication number: 20240192620
    Abstract: A resin particle contains an amorphous resin, a crystalline resin C containing a biomass-derived resin, and at least one of polyethylene terephthalate or polybutylene terephthalate, wherein the resin particle has a core-shell structure comprising a core resin and a shell resin, the core resin comprises the crystalline resin C, and the proportion of the total mass of the biomass-derived resin, the polyethylene terephthalate, and the polybutylene terephthalate to the resin particle at 100 percent by mass is 30 or more percent by mass.
    Type: Application
    Filed: November 22, 2023
    Publication date: June 13, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Yuka Mizoguchi, Akio Takei, Junichi Watanabe, Akinori Saitoh, Masahiro Yukikawa
  • Publication number: 20240152065
    Abstract: Resin particles each include a crystalline polyester resin, an amorphous polyester resin, a release agent, and a colorant. The crystalline polyester resin includes an acid component and an alcohol component as constitutional units, and the acid component of the crystalline polyester resin includes plant-derived dicarboxylic acid having 12 or less carbon atoms. The crystalline polyester resin is present as domains in a matrix of the amorphous polyester resin within each resin particle, an average major axis of the domains of the crystalline polyester resin is 2.0 micrometers or less, and an average aspect ratio (major axis/minor axis) of the domains is 4.0 or greater. The resin particles have a carbon radioisotope 14C concentration of 5.4 pMC or greater.
    Type: Application
    Filed: February 28, 2022
    Publication date: May 9, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Junichi Watanabe, Yuka Mizoguchi, Kohsuke Satoh, Toshihiko Sugiyama
  • Publication number: 20240041899
    Abstract: Provided is a solid preparation having an excellent stability and being useful for treating or improving (or alleviating) a urination disorder regardless of the degree or presence of prostatomegaly. The solid preparation contains a 2-oxapregnane compound represented by the following formula (1) as an active ingredient, and a carrier. In the formula, R1 to R3 each represent an alkyl group such as a methyl group, R4 represents an alkylcarbonyl group such as an acetyl group, X represents a halogen atom such as a chlorine atom, and Y represents a hydroxyl group or oxo group bonded to the 11-position, 15-position, or 16-position of the steroid skeleton. The carrier contains a first carrier and/or a second carrier; the first carrier is not a metal salt-form, and the second carrier is a polyvalent metal salt-form of an inorganic acid.
    Type: Application
    Filed: December 17, 2021
    Publication date: February 8, 2024
    Applicant: ASKA Pharmaceutical Co., Ltd.
    Inventors: Sakiko KITAMURA, Kazuhiro SASAKI, Hiroshige KATAOKA, Asuka OZAWA, Hideo KOBAYASHI, Atsushi SHINBO, Youichi NAKANO, Yuta ITO, Junichi WATANABE
  • Publication number: 20240045350
    Abstract: A resin particle contains a binder resin, wherein the resin particle has a loss tangent ? of 1.8 or greater at angular velocity of from 0.1 to 100 rad/s as measured by frequency sweep at 80 degrees C.
    Type: Application
    Filed: July 27, 2023
    Publication date: February 8, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Toshihiko Sugiyama, Junichi Watanabe, Yuka Mizoguchi, Kazuoki Fuwa
  • Publication number: 20240025764
    Abstract: An iridium-containing oxide having a total pore volume of 0.20 cm3/g or more, calculated by a BJH method from nitrogen adsorption/desorption isotherm measurement, and a pore distribution having an average pore diameter of 7.0 nm or more.
    Type: Application
    Filed: December 14, 2021
    Publication date: January 25, 2024
    Applicant: FURUYA METAL CO., LTD.
    Inventors: Yasuyuki Ikeda, Kenji Terada, Hiroaki Suzuki, Junichi Watanabe, Takashi Ito
  • Publication number: 20230367236
    Abstract: A resin particle contains a core containing a first binder resin containing an alcohol component and a shell containing a second binder resin containing at least one of polyethylene terephthalate and polybutylene terephthalate, wherein the first binder resin contains a plant-derived alcohol monomer accounting for 5 to 35 percent by mass of the entire of the alcohol component and the at least one of polyethylene terephthalate and polybutylene terephthalate accounts for 10 to 70 percent by mass of the entire of the second binder resin.
    Type: Application
    Filed: May 9, 2023
    Publication date: November 16, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Natsuko Matsushita, Yuka Mizoguchi, Junichi Watanabe, Kazuoki Fuwa
  • Patent number: 11809154
    Abstract: A multi-axis control adjustment apparatus includes adjustment axis selection circuitry configured to select a plurality of target axes among a plurality of axes each of which represents a combination of a motor and a motor control device configured to control the motor according to a control parameter of the motor control device, adjustment operation execution circuitry configured to perform adjustment operations in each of which the control parameter is adjusted with respect to each of the plurality of target axes, and first control parameter setting circuitry configured to change, according to the adjustment operations, timing at which the control parameter is set with respect to each of the plurality of target axes.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: November 7, 2023
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Minoru Koga, Isamu Matsumura, Junichi Watanabe, Toshinobu Kira, Tetsuya Asai
  • Publication number: 20230324823
    Abstract: Resin particles that can exhibit high degree of coloring and have high charge stability are provided. Resin particles include a base particle including a binder resin and a pigment having an isoindoline skeleton, wherein a longitudinal diameter of the base particle is L, an overlapped area where the cross-section of the base particle overlaps with a passage of circle C when a center of the circle C with a radius (L/10) moves along a contour of the cross-section of the base particle is defined as a surface layer of the resin particle, wherein the pigment having isoindoline skeleton present on the surface layer of the base particle relative to an entire pigment having isoindoline skeleton present on the cross-section of the base particle in a cross-sectional image of the resin particle is less than 30%, and wherein a gel fraction of the base particle is 20% by mass or more.
    Type: Application
    Filed: March 14, 2023
    Publication date: October 12, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Toshihiko SUGIYAMA, Tsuneyasu NAGATOMO, Junichi WATANABE, Kazuoki FUWA, Yuka MIZOGUCHI
  • Publication number: 20230288829
    Abstract: [Summary] To provide resin particles with high weather resistance even when a plant-derived resin and PET are used as binder resins. [Tasks] The Resin particles includes a binder resin and a colorant, wherein the binder resin contains polyethylene terephthalate and a plant-derived resin, wherein the colorant contains an isoindoline pigment, and wherein a radioisotope 14C concentration in the resin particles is 5.4 pMC or higher.
    Type: Application
    Filed: March 1, 2023
    Publication date: September 14, 2023
    Inventors: Kazuoki FUWA, Yuka MIZOGUCHI, Junichi WATANABE, Toshihiko SUGIYAMA, Natsuko MATSUSHITA