Patents by Inventor Masanori Ishida

Masanori Ishida 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: 20230314980
    Abstract: In a charging roll, grooves regularly defining spirals are formed on an elastic body layer, with a groove width of 4 ?m to 280 ?m and a groove depth of 2 ?m to 30 ?m. On an outer peripheral surface of the elastic body layer, an area ratio between an area of a bottom surface of the groove and an area of a plane part is 0.3 to 2.4. The surface layer includes a binder polymer and a roughness forming particle. The roughness forming particle is arranged on the plane part and the groove. A surface roughness of the surface layer on the groove is 2 ?m to 16 ?m. A surface roughness of the entire surface layer is 5 ?m to 26 ?m. A thickness of the binder polymer covering the roughness forming particle on the groove is greater than that on the plane part.
    Type: Application
    Filed: June 6, 2023
    Publication date: October 5, 2023
    Applicant: Sumitomo Riko Company Limited
    Inventors: Yoshihiro SAITO, Hiroshi UKAI, Masanori ISHIDA
  • Patent number: 10203648
    Abstract: The disclosure shows a cleaning blade for electrophotographic equipment, the cleaning blade through which both high hardness and low warping are obtained and excellent toner scraping properties are realized. The cleaning blade (10) includes a blade part (12) comprising a cured material of a urethane composition containing a polyol, an isocyanate, and a crosslinker or a chain extender. The content of the isocyanate is 28.0 mass % or more with respect to the entire composition. The crosslinker or the chain extender comprises a triol having a molecular weight of 150 or less. The content of the crosslinker or the chain extender is 4.0 mass % or less with respect to the entire composition. The content of the triol having a molecular weight of 150 or less is 0.8 mass % or more with respect to the entire composition.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: February 12, 2019
    Assignee: Sumitomo Riko Company Limited
    Inventors: Kadai Takeyama, Masanori Ishida, Toshihiko Arata, Shimpei Miyagawa
  • Publication number: 20180307178
    Abstract: The disclosure shows a cleaning blade for electrophotographic equipment, the cleaning blade through which both high hardness and low warping are obtained and excellent toner scraping properties are realized. The cleaning blade (10) includes a blade part (12) comprising a cured material of a urethane composition containing a polyol, an isocyanate, and a crosslinker or a chain extender. The content of the isocyanate is 28.0 mass % or more with respect to the entire composition. The crosslinker or the chain extender comprises a triol having a molecular weight of 150 or less. The content of the crosslinker or the chain extender is 4.0 mass % or less with respect to the entire composition. The content of the triol having a molecular weight of 150 or less is 0.8 mass % or more with respect to the entire composition.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 25, 2018
    Applicant: Sumitomo Riko Company Limited
    Inventors: Kadai TAKEYAMA, Masanori ISHIDA, Toshihiko ARATA, Shimpei MIYAGAWA
  • Patent number: 10095176
    Abstract: To provide a composition for a cleaning blade for an electrophotographic apparatus, and a cleaning blade for an electrophotographic apparatus that are capable of suppressing wear, chipping, curling, and contamination. A urethane composition contains (a) a polyester polyol, (b) a polyisocyanate, and (c) a modified silicone oil, wherein the (c) modified silicone oil contains a polysiloxane block and an alkylene oxide block, the alkylene oxide block having a hydroxyl group protected by a protecting group, and the (c) modified silicone oil has no hydroxyl group. A cleaning blade is made of a molding of the urethane composition and contains a polyurethane elastomer and the (c) modified silicone oil.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: October 9, 2018
    Assignee: SUMITOMO RIKO COMPANY LIMITED
    Inventors: Shimpei Miyagawa, Toshihiko Arata, Masanori Ishida, Kadai Takeyama
  • Publication number: 20180275552
    Abstract: Provided is a charging roll for an electrophotographic device in which charge capability is increased and uniformity of charging is satisfied. A charging roll for an electrophotographic device, the charging roll being provided with a shaft body, an elastic body layer formed on the outer periphery of the shaft body, and a surface layer formed on the outer periphery of the elastic body layer, the surface layer containing a binder resin, large-diameter particles having an average particle diameter of 15-50 ?m, and small-diameter particles having an average particle diameter of 3 ?m or more and less than 15 ?m, the content of the small-diameter particles being within the range of 5-50 parts by mass with respect to 100 parts by mass of the binder resin, and the size of particle aggregates including the small-diameter particles contained in the surface layer being 6-50 ?m.
    Type: Application
    Filed: May 28, 2018
    Publication date: September 27, 2018
    Applicant: Sumitomo Riko Company Limited
    Inventors: Masanori Satoh, Yasuhide Watanabe, Masanori Ishida, Hiroshi Ukai, Yoshihiro Saito
  • Patent number: 10062515
    Abstract: This capacitor structure is provided with a capacitor body in which a plurality of wound-type capacitors are housed in a housing, and which is fixed to a fixing object via a fastening tool (a cylindrical member and a fixing bolt). The capacitor structure is configured such that the capacitor body is fixed to the fixing object by inserting the fastening tool into at least one of a gap formed between the outer peripheral surfaces of the wound-type capacitors or gaps formed between the outer peripheral surfaces of the wound-type capacitors and the inner wall of the housing, in a state in which the wound-type capacitors are installed side by side on the floor of the housing.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: August 28, 2018
    Assignees: CALSONIC KANSEI CORPORATION, SHIZUKI ELECTRIC CO., INC.
    Inventors: Gen Okuzuka, Masanori Ishida, Yuji Shiomi
  • Patent number: 10018935
    Abstract: To provide a conductive member for an electrophotographic machine that is capable of preventing hardening degradation of a surface layer that is caused by an ionic conductive agent contained in a conductive rubber elastic body layer, allowing the surface layer to be improved in durability. A conductive member 10 for an electrophotographic machine includes a conductive rubber elastic body layer 14 containing crosslinked rubber and an ionic conductive agent, and a surface layer 16 provided on an outer periphery of the conductive rubber elastic body layer 14, wherein the surface layer 16 contains a polymer and polyphenol. Examples of the polyphenol include a tannin, gallic acid, ellagic acid, pyrogallol, catechin, and chlorogenic acid.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: July 10, 2018
    Assignee: SUMITOMO RIKO COMPANY LIMITED
    Inventors: Masanori Ishida, Takayuki Ootani, Kunio Ito, Keisuke Tokoro
  • Publication number: 20180136577
    Abstract: To provide a charging roll for an electrophotographic apparatus capable of preventing image defects such as horizontal streaks and unevenness by particles added to a surface layer, and preventing the particles from falling off from the surface layer also during the endurance time. A charging roll 10 includes a shaft body 12, an elastic body layer 14 provided on the outer periphery of the shaft body 12, and a surface layer 16 provided on the outer periphery of the elastic body layer 14, wherein the surface layer contains (a) a binder, (b) particles having an average particle diameter of 10 to 120 micrometers, and (c) a polyphenol.
    Type: Application
    Filed: December 19, 2017
    Publication date: May 17, 2018
    Applicant: Sumitomo Riko Company Limited
    Inventors: Yoshihiro Saito, Takanori Ito, Masanori Ishida
  • Publication number: 20180039223
    Abstract: To provide a composition for a cleaning blade for an electrophotographic apparatus, and a cleaning blade for an electrophotographic apparatus that are capable of suppressing wear, chipping, curling, and contamination. A urethane composition contains (a) a polyester polyol, (b) a polyisocyanate, and (c) a modified silicone oil, wherein the (c) modified silicone oil contains a polysiloxane block and an alkylene oxide block, the alkylene oxide block having a hydroxyl group protected by a protecting group, and the (c) modified silicone oil has no hydroxyl group. A cleaning blade is made of a molding of the urethane composition and contains a polyurethane elastomer and the (c) modified silicone oil.
    Type: Application
    Filed: October 19, 2017
    Publication date: February 8, 2018
    Applicant: Sumitomo Riko Company Limited
    Inventors: Shimpei Miyagawa, Toshihiko Arata, Masanori Ishida, Kadai Takeyama
  • Publication number: 20180019062
    Abstract: This capacitor structure is provided with a capacitor body in which a plurality of wound-type capacitors are housed in a housing, and which is fixed to a fixing object via a fastening tool (a cylindrical member and a fixing bolt). The capacitor structure is configured such that the capacitor body is fixed to the fixing object by inserting the fastening tool into at least one of a gap formed between the outer peripheral surfaces of the wound-type capacitors or gaps formed between the outer peripheral surfaces of the wound-type capacitors and the inner wall of the housing, in a state in which the wound-type capacitors are installed side by side on the floor of the housing.
    Type: Application
    Filed: January 14, 2016
    Publication date: January 18, 2018
    Applicants: CALSONIC KANSEI CORPORATION, SHIZUKI ELECTRIC CO., INC.
    Inventors: Gen OKUZUKA, Masanori ISHIDA, Yuji SHIOMI
  • Patent number: 9857725
    Abstract: An electrophotographic device member R is used in an electrophotographic device. The electrophotographic device member R has a surface layer 1. The surface layer 1 has a matrix polymer 11 forming a skeleton of the surface layer 1 and a surface modifier 12 contained in the matrix polymer 11. The surface modifier 12 is composed of a copolymer containing, in its molecule, a first polymerization unit derived from a (meth)acrylate having a silicone group 121 and a second polymerization unit derived from a (meth)acrylate having a fluorine-containing group 122.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: January 2, 2018
    Assignee: SUMITOMO RIKO COMPANY LIMITED
    Inventors: Kentaro Imai, Yosuke Hayashi, Masanori Ishida, Fumio Misumi, Masanori Satou, Toshihiko Arata, Atsushi Ozaki
  • Patent number: 9801012
    Abstract: A radio communication system includes: a visit information storage unit that stores plural visit information elements each indicating information on a visit to a cell visited by a user equipment; an event detector that detects an event that occurs in the user equipment; a cell identifier detector that detects a cell identifier that indicates a cell visited by the user equipment; and a location characteristic determiner that determines a location characteristic of the cell indicated by the cell identifier based on one or more visit information elements corresponding to the cell. The location to characteristic determiner determines the location characteristic of a cell visited by the user equipment when the event detector detects a no-cell-change event other than a cell-change event that indicates a change in the cell identifier.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: October 24, 2017
    Assignee: NTT DOCOMO, INC.
    Inventors: Yasufumi Morioka, Kouki Hayashi, Masanori Ishida, Yoshifumi Morihiro
  • Patent number: 9736632
    Abstract: A user apparatus includes processing modules that execute processing using basic area information, and an area information supply module that supplies basic area information to the processing modules. The area information supply module includes an event detection unit that detects an event, an area information acquisition unit that acquires basic area information in accordance with an event being detected, and an area information notification unit that notifies the processing modules of the basic area information. The area information acquisition unit acquires detailed area information in accordance with a request signal being received. The area information notification unit notifies a processing module of the detailed area information.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: August 15, 2017
    Assignee: NTT DOCOMO, INC.
    Inventors: Yasufumi Morioka, Kouki Hayashi, Masanori Ishida, Yoshifumi Morihiro
  • Publication number: 20170227881
    Abstract: To provide a conductive member for an electrophotographic machine that is capable of preventing hardening degradation of a surface layer that is caused by an ionic conductive agent contained in a conductive rubber elastic body layer, allowing the surface layer to be improved in durability. A conductive member 10 for an electrophotographic machine includes a conductive rubber elastic body layer 14 containing crossiinked rubber and an ionic conductive agent, and a surface layer 16 provided on an outer periphery of the conductive rubber elastic body layer 14, wherein the surface layer 16 contains a polymer and polyphenol. Examples of the polyphenol include a tannin, gallic acid, ellagic acid, pyrogallol, catechin, and chlorogenic acid.
    Type: Application
    Filed: April 17, 2017
    Publication date: August 10, 2017
    Applicant: Sumitomo Riko Company Limited
    Inventors: Masanori Ishida, Takayuki Ootani, Kunio Ito, Keisuke Tokoro
  • Patent number: 9571193
    Abstract: A feature of the present invention pertains to a transmitter for transmitting data by video, the transmitter including a transmission data control unit that distributes the data to multiple colors constituting the video, and a display unit that converts the distributed data into a sequence of a predetermined color value with respect to each of the multiple colors and lighting the multiple colors in a communication area on a display in accordance with the sequence of the color value.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: February 14, 2017
    Assignee: NTT DOCOMO, INC.
    Inventors: Masanori Ishida, Kouki Hayashi, Kunio Yoshikawa
  • Patent number: 9551774
    Abstract: A method to be executed by a user terminal for searching for locations of one or more wireless devices that are located within an area in which the one or more wireless devices can wirelessly communicate with the user terminal, wherein each of the one or more wireless devices periodically transmits a beacon signal. The method includes detecting a number of the one or more wireless devices that are located within the area based on the beacon signals; determining a transmission period for transmitting the beacon signals depending on the number of the one or more wireless devices; and instructing the one or more wireless devices that are located within the area to transmit the beacon signals in accordance with the determined transmission period.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: January 24, 2017
    Assignee: NTT DOCOMO, INC.
    Inventors: Masanori Ishida, Shigeru Sekiguchi, Kouki Hayashi, Shin Nakamatsu, Ryuutarou Hosoi
  • Publication number: 20160378012
    Abstract: There is provided a charging member (1) capable of improving adhesion of an elastic layer (3) with a surface layer (4), which is used for an electrophotographic image forming device. The charging member (1) has a shaft body (2) having conductivity, the elastic layer (3) having conductivity which is formed along the outer circumference of the shaft body (2), and the surface layer (4) formed along the outer circumference of the elastic layer (3). The elastic layer (3) contains a rubber and a calcium carbonate having a spindle shape. The surface layer (4) is composed of a cured material of a composition containing a matrix polymer, a polyisocyanate having two or more isocyanate groups in a molecule, and a porous particle. The calcium carbonate in the elastic layer (3) exists more at a side closer to the surface layer (4) than at a side closer to the shaft body (2).
    Type: Application
    Filed: September 13, 2016
    Publication date: December 29, 2016
    Applicant: SUMITOMO RIKO COMPANY LIMITED
    Inventors: Masanori Satoh, Satoshi Tatsumi, Yukio Oyama, Masanori Ishida, Koji Morihara
  • Patent number: 9515482
    Abstract: Consciousness of environmental conservation is increasing nowadays, and there are power generators for a portable device and employing power generation schemes without a co2 discharge, such as solar power generation and hand-crank power generation. When, however, power is supplied, information indicating that the power is obtained from clean energy without a CO2 discharge is unknown at the portable-device side. When power is supplied from the power generator to the portable device, a power generation scheme identifier for identifying a power generation scheme is transmitted. The portable device identifies the power generation scheme identifier, and can recognize the power generation scheme of the connected power generator. A supplied power level is recognized based on a power level of the storage battery of the portable device at a time point of starting the power supply, and a power level of the storage battery at a time point of terminating the power supply.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: December 6, 2016
    Assignee: NTT DOCOMO, Inc.
    Inventors: Kouki Hayashi, Masanori Ishida, Hosei Matsuoka, Takashi Ninjouji
  • Patent number: 9451435
    Abstract: A server includes an area information retrieving unit that retrieves, when a phenomenon occurs, information indicating an area of the phenomenon; a subscriber information retrieving unit that retrieves subscriber information of a user terminal served by a base station in the area from a subscriber information management server that associates and manages, for each user terminal, subscriber information and serving base station information, based on the area information; a personal information checking unit that checks the personal information managed by a personal information database against the subscriber information retrieved by the subscriber information retrieving unit, and that identifies the user terminal including the personal information which includes the subscriber information; and a message transmitting unit that reports to the identified user terminal that a user of the user terminal which includes the subscriber information is in the area of the phenomenon.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: September 20, 2016
    Assignee: NTT DOCOMO, INC.
    Inventors: Masanori Ishida, Kouki Hayashi
  • Patent number: 9436151
    Abstract: An electrophotographic device member can be configured as a roll member 1, a blade member 2, a belt member 3 or the like, and a modified rubber elastic body 12 is used as a material for a portion including the surfaces of the respective members. The modified rubber elastic body 12 has a rubber elastic body 121 having rubber elasticity and a surface-treated layer 122 composed of a cured product of photocurable composition impregnated into the rubber elastic body 121 from the surface thereof. The photocurable composition is configured to include a (meth)acryl monomer, a photopolymerizable polymer having a silicone group and/or a fluorine-containing group and a (meth)acryloyl group in a molecule, and a photopolymerization initiator.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: September 6, 2016
    Assignee: SUMITOMO RIKO COMPANY LIMITED
    Inventors: Yosuke Hayashi, Shuichi Egawa, Keiichi Inoue, Kazushi Yamaguchi, Kazuhiro Iida, Kentaro Imai, Masanori Ishida