Patents by Inventor Masaaki Tsuda

Masaaki Tsuda 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: 20240100841
    Abstract: A liquid discharge apparatus includes a first liquid discharge unit including a first liquid discharge head that moves in a main scanning direction to discharge a liquid onto a recording medium conveyed in a conveyance direction orthogonal to the main scanning direction, a second liquid discharge unit at a different position with the first liquid discharge unit in the conveyance direction and including a second liquid discharge head that moves in the main scanning direction parallel to the first liquid discharge head to discharge a liquid onto the recording medium, a first airflow generator between the first liquid discharge unit and the second liquid discharge unit in the conveyance direction to generate an airflow flowing in the main scanning direction, and a partition plate between the first airflow generator and the second liquid discharge unit in the conveyance direction.
    Type: Application
    Filed: September 13, 2023
    Publication date: March 28, 2024
    Inventors: Masaaki TSUDA, Norikazu YANASE
  • Publication number: 20230219194
    Abstract: According to an embodiment, an electrodeposition whetstone includes a plating layer, first abrasive grains protruding from the plating layer, and second abrasive grains which are arranged between the first abrasive grains. The amount of protrusion of the second abrasive grains from the plating layer is smaller than the amount of protrusion of the first abrasive grains from the plating layer. A grain size of the second abrasive grains is smaller than a grain size of the first abrasive grains.
    Type: Application
    Filed: March 21, 2023
    Publication date: July 13, 2023
    Applicant: TOKYO DIAMOND TOOLS MFG. CO., LTD.
    Inventors: Masaaki TSUDA, Jun KISHIMOTO, Takeshi YAGI
  • Publication number: 20220088746
    Abstract: A synthetic grindstone (100) for chemo-mechanical grinding a wafer S, comprising: an abrasive (101) that contains cerium oxide having an average particle diameter of 10 ?m or less as a main component and has a chemo-mechanical grinding action on the wafer S; a friction promoter (102) that contains a fiber material having a Mohs hardness lower than that of the wafer S and a high friction coefficient as a main component and promotes heat generation; and a binder (103) that contains a phenol resin as a main component and disperses and binds the abrasive (101) and the friction promotor (102).
    Type: Application
    Filed: November 30, 2021
    Publication date: March 24, 2022
    Applicant: TOKYO DIAMOND TOOLS MFG. CO., LTD.
    Inventor: Masaaki TSUDA
  • Patent number: 10857806
    Abstract: A liquid discharge apparatus includes a liquid discharge head, a conveyance device, an imaging device, and processing circuitry. The liquid discharge head is configured to discharge liquid to an object to form a liquid application surface. The conveyance device is configured to convey the object. The imaging device is configured to capture a plurality of positions of the object on which the liquid application surface is formed. The processing circuitry is configured to control discharge of the liquid by the liquid discharge head according to a plurality of pieces of different pattern data for forming the liquid application surface, control conveyance of the object by the conveyance device to form the liquid application surface corresponding to the pattern data, and determine a processing method of forming the liquid application surface according to captured images of the plurality of positions captured by the imaging device.
    Type: Grant
    Filed: March 17, 2019
    Date of Patent: December 8, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Masaaki Tsuda
  • Publication number: 20190283446
    Abstract: A liquid discharge apparatus includes a liquid discharge head, a conveyance device, an imaging device, and processing circuitry. The liquid discharge head is configured to discharge liquid to an object to form a liquid application surface. The conveyance device is configured to convey the object. The imaging device is configured to capture a plurality of positions of the object on which the liquid application surface is formed. The processing circuitry is configured to control discharge of the liquid by the liquid discharge head according to a plurality of pieces of different pattern data for forming the liquid application surface, control conveyance of the object by the conveyance device to form the liquid application surface corresponding to the pattern data, and determine a processing method of forming the liquid application surface according to captured images of the plurality of positions captured by the imaging device.
    Type: Application
    Filed: March 17, 2019
    Publication date: September 19, 2019
    Inventor: Masaaki TSUDA
  • Patent number: 10399363
    Abstract: A print method includes applying a first ink to a recording medium to form a first ink print layer, drying the first ink print layer to a drying ratio of 30 percent or less, and applying a second ink having a color different from that of the first ink to the first ink print layer to form a second ink print layer thereon, wherein the first ink includes a urethane resin particle and a water-soluble organic solvent having a boiling point of from 100 to 180 degrees C. or ?-alkoxy propionamide of Chemical formula I, where R1 represents a methyl group, an ethyl group, a propyl group, or a butyl group and R2 and R3 each, independently represent alkyl groups having one to six carbon atoms, and the first ink and the second ink includes no organic solvent having a boiling point of 280 degrees C. or higher under 1 atm.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: September 3, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Juichi Furukawa, Masaaki Tsuda, Hidefumi Nagashima, Yukihiro Imanaga, Masahiro Kido, Hikaru Kobayashi, Yuta Nakamura
  • Patent number: 10119042
    Abstract: An ink including: water; at least one organic solvent; a polysiloxane surfactant; and acryl-silicone resin particles, where the polysiloxane surfactant has an HLB value of 8 or less.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: November 6, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Masahiro Kido, Juichi Furukawa, Hidefumi Nagashima, Yuta Nakamura, Masaaki Tsuda, Hikaru Kobayashi, Yukihiro Imanaga, Michihiko Namba, Hiroaki Takahashi, Takahiro Yoshida
  • Publication number: 20180001669
    Abstract: A print method includes applying a first ink to a recording medium to form a first ink print layer, drying the first ink print layer to a drying ratio of 30 percent or less, and applying a second ink having a color different from that of the first ink to the first ink print layer to form a second ink print layer thereon, wherein the first ink includes a urethane resin particle and a water-soluble organic solvent having a boiling point of from 100 to 180 degrees C. or ?-alkoxy propionamide of Chemical formula I, where R1 represents a methyl group, an ethyl group, a propyl group, or a butyl group and R2 and R3 each, independently represent alkyl groups having one to six carbon atoms, and the first ink and the second ink includes no organic solvent having a boiling point of 280 degrees C. or higher under 1 atm.
    Type: Application
    Filed: June 27, 2017
    Publication date: January 4, 2018
    Inventors: Juichi FURUKAWA, Masaaki Tsuda, Hidefumi Nagashima, Yukihiro Imanaga, Masahiro Kido, Hikaru Kobayashi, Yuta Nakamura
  • Publication number: 20170174919
    Abstract: An ink including: water; at least one organic solvent; a polysiloxane surfactant; and acryl-silicone resin particles, where the polysiloxane surfactant has an HLB value of 8 or less.
    Type: Application
    Filed: December 16, 2016
    Publication date: June 22, 2017
    Inventors: Masahiro KIDO, Juichi FURUKAWA, Hidefumi NAGASHIMA, Yuta NAKAMURA, Masaaki TSUDA, Hikaru KOBAYASHI, Yukihiro IMANAGA, Michihiko NAMBA, Hiroaki TAKAHASHI, Takahiro YOSHIDA
  • Publication number: 20150166639
    Abstract: The invention provides agents that promote or inhibit neurite elongation comprising as an active ingredient an antibody that recognizes a varicella-zoster virus immediate-early protein and cross-reacts with a brain-derived neurotrophic factor. The invention also provides methods of utilizing such agents to prevent or treat a nervous disease or a disease with nerve hypersensitivity caused by a condition selected from the group consisting of postherpetic neuralgia, chronic pains, experience-dependent social aversion and stress.
    Type: Application
    Filed: February 26, 2015
    Publication date: June 18, 2015
    Inventors: Kimiyasu SHIRAKI, Yuka HAMA, Yoshihiro YOSHIDA, Masaaki TSUDA, Tadaharu TSUMOTO, Shunro ENDO, Michiaki TAKAHASHI
  • Patent number: 8998196
    Abstract: An image forming apparatus includes a first roller to come into contact with a first side of a recording medium and a second roller and a third roller to come into contact with a second side of the recording medium opposite the first side. Each of the first roller, the second roller, and the third roller includes a plurality of increased diameter portions and a plurality of decreased diameter portions alternately arranged in an axial direction of each of the first roller, the second roller, and the third roller to produce an uneven outer circumferential surface thereof. The increased diameter portions of the first roller overlap the increased diameter portions of each of the second roller and the third roller, respectively, with a clearance therebetween.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: April 7, 2015
    Assignee: Ricoh Company, Ltd.
    Inventor: Masaaki Tsuda
  • Publication number: 20150008636
    Abstract: An image forming apparatus includes a first roller to come into contact with a first side of a recording medium and a second roller and a third roller to come into contact with a second side of the recording medium opposite the first side. Each of the first roller, the second roller, and the third roller includes a plurality of increased diameter portions and a plurality of decreased diameter portions alternately arranged in an axial direction of each of the first roller, the second roller, and the third roller to produce an uneven outer circumferential surface thereof. The increased diameter portions of the first roller overlap the increased diameter portions of each of the second roller and the third roller, respectively, with a clearance therebetween.
    Type: Application
    Filed: June 18, 2014
    Publication date: January 8, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventor: Masaaki Tsuda
  • Patent number: 8540337
    Abstract: A disclosed image forming apparatus is capable of solving the problems of deterioration of a foam application function and driving systems caused by the dried and fixed foam remaining without being applied. The image forming apparatus includes a foam forming section forming foam, a reservoir section supplying foam formed by the foam forming section to an application roller, a discharge channel through which extra foam is collected from the reservoir section, and a heating unit for heating the extra foam to return the extra foam to a liquid form. The discharged liquid prepared by defoaming the foam discharged through the discharge channel is returned to a container containing the defoamed liquid.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: September 24, 2013
    Assignee: Ricoh Company
    Inventors: Shinji Imoto, Kazuyoshi Matsumoto, Minori Ichimura, Manabu Izumikawa, Yasuhisa Kato, Yasuo Katano, Seiji Hoshino, Masaaki Tsuda
  • Publication number: 20100245460
    Abstract: A disclosed image forming apparatus is capable of solving the problems of deterioration of a foam application function and driving systems caused by the dried and fixed foam remaining without being applied. The image forming apparatus includes a foam forming section forming foam, a reservoir section supplying foam formed by the foam forming section to an application roller, a discharge channel through which extra foam is collected from the reservoir section, and a heating unit for heating the extra foam to return the extra foam to a liquid form. The discharged liquid prepared by defoaming the foam discharged through the discharge channel is returned to a container containing the defoamed liquid.
    Type: Application
    Filed: December 4, 2008
    Publication date: September 30, 2010
    Inventors: Shinji Imoto, Kazuyoshi Matsumoto, Minori Ichimura, Manabu Izumikawa, Yasuhisa Kato, Yasuo Katano, Seiji Hoshino, Masaaki Tsuda
  • Patent number: 7705871
    Abstract: An image forming apparatus includes an optical writing device. The optical writing device includes an optical writing unit that emits laser light beams toward image carriers, an outer case that accommodates the optical writing unit, and air supplying devices that supply air into the outer case. The outer case includes openings through which the laser light beams pass. Another image forming apparatus includes an optical writing device that emits laser light beams toward image carriers to form latent images thereon, partition members that are interposed between the image carriers and the optical writing device and that have openings elongating along a scanning direction of the optical writing device, and shutter mechanisms including shutter members to open and close the openings. The laser light beams are emitted from the optical writing device toward the image carriers through the openings.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: April 27, 2010
    Assignee: Ricoh Company Limited
    Inventors: Kazuhiko Imamura, Takefumi Adachi, Masaaki Tsuda
  • Publication number: 20100047247
    Abstract: The invention provides agents that promote or inhibit neurite elongation comprising as an active ingredient an antibody that recognizes a varicella-zoster virus immediate-early protein and cross-reacts with a brain-derived neurotrophic factor. The invention also provides methods of utilizing such agents to prevent or treat a nervous disease or a disease with nerve hypersensitivity caused by a condition selected from the group consisting of postherpetic neuralgia, chronic pains, experience-dependent social aversion and stress.
    Type: Application
    Filed: November 16, 2007
    Publication date: February 25, 2010
    Applicant: THE RESEARCH FOUNDATION FOR MICROBIAL DISEASES OF OSAKA UNIVERSITY
    Inventors: Kimiyasu Shiraki, Yuka Hama, Yoshihiro Yoshida, Masaaki Tsuda, Tadaharu Tsumoto, Shunro Endo, Michiaki Takahashi
  • Patent number: 7526223
    Abstract: A housing in which a heat source for heating a member to be heated is disposable includes a first end and a second end in a longitudinal direction. Each of the first end and the second end is linked to a duct. A blowing unit is provided at the first end of the housing and causes an airflow in a space formed in a state in which the heat source is disposed in the housing. The duct linked to the second end of the housing is formed to extend from the second end. A length of the duct linked to the second end of the housing is longer than a hydraulic diameter by a predetermined number of times or more.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: April 28, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Takefumi Adachi, Kazuhiko Imamura, Masaaki Tsuda, Toshio Ishii, Makoto Ando, Yuichi Watanabe
  • Patent number: 7302208
    Abstract: A unit supporting device supports a unit that can be inserted into an accommodating position and pulled out to an operable position while defining a position of the unit with respect to a member opposite to the unit. A configuration for setting a positional relationship between the unit and the member in a process in which the unit is inserted toward the accommodating position is provided on the unit and the member.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: November 27, 2007
    Assignee: Ricoh Company, Limited
    Inventors: Masaaki Tsuda, Tsutomu Katoh
  • Publication number: 20060257161
    Abstract: A housing in which a heat source for heating a member to be heated is disposable includes a first end and a second end in a longitudinal direction. Each of the first end and the second end is linked to a duct. A blowing unit is provided at the first end of the housing and causes an airflow in a space formed in a state in which the heat source is disposed in the housing. The duct linked to the second end of the housing is formed to extend from the second end. A length of the duct linked to the second end of the housing is longer than a hydraulic diameter by a predetermined number of times or more.
    Type: Application
    Filed: May 1, 2006
    Publication date: November 16, 2006
    Inventors: Takefumi Adachi, Kazuhiko Imamura, Masaaki Tsuda, Toshio Ishii, Makoto Ando, Yuichi Watanabe
  • Patent number: D1016110
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: February 27, 2024
    Assignee: TOKYO DIAMOND TOOLS MFG. CO., LTD.
    Inventors: Masahiro Suzuki, Masaaki Tsuda