Patents by Inventor Yoshifumi Watanabe

Yoshifumi 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).

  • Patent number: 11396097
    Abstract: A teaching apparatus includes circuitry. The circuitry is configured to obtain result information corresponding to a position of a worked region on a workpiece. The circuitry is configured to generate first teaching information based on the result information. The first teaching information specifies a motion of an examination robot configured to examine the workpiece that has undergone work.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: July 26, 2022
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Koichi Kuwahara, Yoshifumi Onoyama, Kazuma Tabuchi, Masaru Adachi, Wataru Watanabe
  • Publication number: 20220203513
    Abstract: A chain saw may include a saw chain, a guide bar to which the saw chain is attached, a sprocket configured to run the saw chain along a periphery of the guide bar, a prime mover configured to rotate the sprocket, an oil tank configured to store oil to be supplied to the saw chain, a housing that houses the prime mover and the oil tank, a bolt protruding from the housing and penetrating a hole disposed in the guide bar, a nut screwed onto the bolt to fix the guide bar to the housing, and a heat dissipating structure configured to dissipate heat from the bolt to the oil in the oil tank.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 30, 2022
    Applicant: MAKITA CORPORATION
    Inventors: Kohei OISHI, Ryo SUNAZUKA, Yoshifumi WATANABE
  • Patent number: 11370477
    Abstract: A calculator or an electronic control unit (ECU) calculates an instruction value of a column assist torque and a rack assist torque output from a column actuator, or a column motor, and a rack actuator, or a rack motor, based at least on a torsion torque. The calculator includes a base assist controller, a stabilization controller, and an adder. The base assist controller individually or commonly calculates a base assist torque based on the torsion torque. The stabilization controller individually or commonly calculates a stabilization torque for stabilizing a steering system. The adder performs addition of the base assist torque and the stabilization torque.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: June 28, 2022
    Assignees: DENSO CORPORATION, NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Shuji Kuramitsu, Hiroyasu Otake, Ryo Kano, Yoshifumi Morita, Hironao Watanabe, Takayuki Kato
  • Patent number: 11021624
    Abstract: An oil-based magnetic ink can be provided that has low viscosity and improved storage stability. Specifically disclosed is an oil-based magnetic ink containing a magnetic pigment that contains a ferrite, a pigment dispersant A that has an acid value but has no base value, a pigment dispersant B that has an acid value and a base value, and a non-aqueous solvent. One example of the pigment dispersant A is at least one compound selected from the group consisting of hydroxystearic acid and polyhydroxystearic acid. One example of the pigment dispersant B has an acid value of at least 5 mgKOH/g.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: June 1, 2021
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Kenji Yamada, Naofumi Ezaki, Yoshifumi Watanabe
  • Patent number: 10920096
    Abstract: An oil-based inkjet ink is disclosed that contains a colorant, an oil-soluble resin that is an acrylic-based polymer having a side chain containing a polydimethylsiloxane structure, and a non-aqueous solvent. A method for producing an oil-based inkjet ink is also disclosed.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: February 16, 2021
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Shinsuke Ozawa, Mitsuko Kitanohara, Hikaru Sugiura, Yoshifumi Watanabe, Manami Shimizu, Naofumi Ezaki, Tomohiro Matsuzawa
  • Patent number: 10907062
    Abstract: An oil-based inkjet ink is disclosed that contains colored resin particles, an ionic dispersant and a non-aqueous solvent, wherein the colored resin particles contain a colorant and a urethane-urea resin. A method for producing an oil-based inkjet ink is also disclosed.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: February 2, 2021
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Tomohiro Matsuzawa, Yoshifumi Watanabe, Naofumi Ezaki, Yasuo Yamamoto, Mitsuko Kitanohara, Manami Shimizu
  • Publication number: 20200338780
    Abstract: A chain saw may comprise a braking mechanism; a housing including a first space and a second space in which the braking mechanism is disposed; and an operation member. The housing may include a through hole communicating the second space to outside of the housing. The operation member may be disposed over the second space and the outside of the housing through the through hole. The operation member may be movable between a braking position where the operation member causes the braking mechanism to interrupt rotation of a saw chain and a driving position where the operation member causes the braking mechanism not to interrupt the rotation of the saw chain. The braking mechanism may comprise a connecting member that moves in the second space in conjunction with movement of the operation member. The housing may include an opening communicating the first space to the second space.
    Type: Application
    Filed: April 21, 2020
    Publication date: October 29, 2020
    Applicant: MAKITA CORPORATION
    Inventors: Yoshifumi Watanabe, Junichi Masuda, Hideki Kachi, Tsunahisa Nakamura
  • Patent number: 10682939
    Abstract: A vehicle seat including: a pad including: a surface pad on a side of a seating surface; and a back pad integrated to the surface pad; and a cover member that covers the pad, a frame-shaped reinforcing member is insert-molded to an outer peripheral edge of the back pad, a part of the reinforcing member, which is a locked portion that locks an end portion of the cover member, is exposed from the back pad, a part in the outer peripheral edge of the back pad other than a part corresponding to the locked portion is formed with recesses, an engagement member attached to the end portion of the cover member being inserted into the recesses, and the part of the back pad corresponding to the locked portion is thinner than a part of the back pad where the recesses are formed.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: June 16, 2020
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Toru Araki, Koh Tanaka, Yoshifumi Watanabe
  • Publication number: 20200002557
    Abstract: An oil-based inkjet ink is disclosed that contains colored resin particles, an ionic dispersant and a non-aqueous solvent, wherein the colored resin particles contain a colorant and a urethane-urea resin. A method for producing an oil-based inkjet ink is also disclosed.
    Type: Application
    Filed: May 31, 2019
    Publication date: January 2, 2020
    Inventors: Tomohiro MATSUZAWA, Yoshifumi WATANABE, Naofumi EZAKI, Yasuo YAMAMOTO, Mitsuko KITANOHARA, Manami SHIMIZU
  • Publication number: 20190300737
    Abstract: An oil-based inkjet ink is disclosed that contains a colorant, an oil-soluble resin that is an acrylic-based polymer having a side chain containing a polydimethylsiloxane structure, and a non-aqueous solvent. A method for producing an oil-based inkjet ink is also disclosed.
    Type: Application
    Filed: February 19, 2019
    Publication date: October 3, 2019
    Inventors: Shinsuke OZAWA, Mitsuko KITANOHARA, Hikaru SUGIURA, Yoshifumi WATANABE, Manami SHIMIZU, Naofumi EZAKI, Tomohiro MATSUZAWA
  • Patent number: 10401230
    Abstract: A second case includes a projection that projects on an opposite side of a threaded portion of the second case, which is opposite from a first case, while the projection is placed in a passage when the second case is installed to an installation-subject member. An opening is formed in a visible area of an outer peripheral surface of the projection, which is visible at a time of viewing the outer peripheral surface in a flow direction of the measurement-subject medium upon installation of the second case to the installation-subject member, and the projection includes a flow direction changing portion that changes a flow direction of the measurement-subject medium, which is introduced from the passage into an introducing hole through the opening, from a direction along the passage to a direction toward the sensor unit.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: September 3, 2019
    Assignee: DENSO CORPORATION
    Inventors: Kazuaki Fujisawa, Yoshifumi Watanabe, Kouji Hashimoto
  • Publication number: 20190206620
    Abstract: An oil-based magnetic inkjet ink that prevents any increase in ink viscosity over a long period of time can be provided. The oil-based magnetic inkjet ink contains a magnetic pigment containing a ferrite, a dispersant, a non-aqueous solvent, and an organometallic chelate compound. This organometallic chelate compound may include an organoaluminum chelate compound.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Inventors: Kenji YAMADA, Yoshifumi WATANABE
  • Publication number: 20190176668
    Abstract: A vehicle seat including: a pad including: a surface pad on a side of a seating surface; and a back pad integrated to the surface pad; and a cover member that covers the pad, a frame-shaped reinforcing member is insert-molded to an outer peripheral edge of the back pad, a part of the reinforcing member, which is a locked portion that locks an end portion of the cover member, is exposed from the back pad, a part in the outer peripheral edge of the back pad other than a part corresponding to the locked portion is formed with recesses, an engagement member attached to the end portion of the cover member being inserted into the recesses, and the part of the back pad corresponding to the locked portion is thinner than a part of the back pad where the recesses are formed.
    Type: Application
    Filed: December 5, 2018
    Publication date: June 13, 2019
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Toru ARAKI, Koh TANAKA, Yoshifumi WATANABE
  • Publication number: 20190031901
    Abstract: An oil-based magnetic ink can be provided that has low viscosity and improved storage stability. Specifically disclosed is an oil-based magnetic ink containing a magnetic pigment that contains a ferrite, a pigment dispersant A that has an acid value but has no base value, a pigment dispersant B that has an acid value and a base value, and a non-aqueous solvent. One example of the pigment dispersant A is at least one compound selected from the group consisting of hydroxystearic acid and polyhydroxystearic acid. One example of the pigment dispersant B has an acid value of at least 5 mgKOH/g.
    Type: Application
    Filed: July 25, 2018
    Publication date: January 31, 2019
    Inventors: Kenji YAMADA, Naofumi EZAKI, Yoshifumi WATANABE
  • Patent number: 10144839
    Abstract: A colored resin particle dispersion having improved fixation to the printed item immediately after printing and improved color development properties for the printed item, and an inkjet ink containing the colored resin particle dispersion. The colored resin particle dispersion contains colored resin particles, a basic dispersant, and a non-aqueous solvent, wherein the colored resin particles contain a colorant and a (meth)acrylic-based resin, and the (meth)acrylic-based resin has a unit A having a carboxyl group, a unit B having a phosphoric acid group and/or a phosphate ester group, and a unit C having an aromatic ring.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: December 4, 2018
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Manami Shimizu, Yoshifumi Watanabe
  • Patent number: 10106639
    Abstract: An oil-based inkjet ink that exhibits excellent repellency by the nozzle plate, prevents degradation of the nozzle plate, reduces image show-through, and yields high image density. The oil-based inkjet ink includes an encapsulated pigment containing a pigment and a urethane compound that coats the surface of the pigment, and a non-aqueous solvent, wherein the urethane compound has a urethane skeleton and one or more side chains and is insoluble in the non-aqueous solvent, and the side chains of the urethane compound contain one or more moieties selected from the group consisting of an aromatic ring, a heterocyclic ring, a carboxyl group, an amide linkage, a fluoroalkyl group having one or more fluorine atoms, and a nitrile group.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: October 23, 2018
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Yoshifumi Watanabe, Manami Shimizu, Kenji Yamada, Tomohiro Matsuzawa
  • Patent number: 10059813
    Abstract: A colored resin particle dispersion and an inkjet ink are provided which preferably exhibit excellent rub fastness and alcohol resistance, and yield printed items having high image density. Specifically, a colored resin particle dispersion includes colored resin particles, a basic dispersant and a non-aqueous solvent. The colored resin particles include a colorant, a thermoplastic solid resin and a liquid organic compound having an acidic group, and the thermoplastic solid resin has a polar parameter ?p and a hydrogen bonding parameter ?h from the Hansen solubility parameters that satisfy ?p=2.5 to 11.0 and ?h=5.0 to 12.0 respectively is provided.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: August 28, 2018
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Yoshifumi Watanabe, Manami Shimizu
  • Patent number: 10040958
    Abstract: A colored resin particle dispersion and an ink are provided which yield excellent abrasion resistance for printed items. Moreover, a colored resin particle dispersion and an inkjet ink are provided which exhibit excellent abrasion resistance, water resistance and marker resistance, as well as favorable storage stability. Specifically provided are a colored resin particle dispersion containing colored resin particles, a basic dispersant, and a non-aqueous solvent, wherein the colored resin particles include a colorant and a crosslinked solid resin, and an inkjet ink containing this colored resin particle dispersion.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: August 7, 2018
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Kazuyuki Ando, Yoshifumi Watanabe, Manami Shimizu
  • Patent number: 9963603
    Abstract: A colored resin particle dispersion and an ink are provided which exhibit excellent color development and abrasion resistance. Moreover, a colored resin particle dispersion and an inkjet ink are provided which exhibit excellent color development and abrasion resistance, together with excellent water resistance and marker resistance. Specifically provided are a colored resin particle dispersion containing colored resin particles, a basic dispersant, and a non-aqueous solvent, wherein the colored resin particles contain a colorant, and a phosphorylated solid resin and/or a nitrated solid resin. The phosphorylated solid resin may include a phosphorylated polyvinyl alcohol and/or a phosphorylated polyvinyl acetal, and the nitrated solid resin may include a nitrocellulose.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: May 8, 2018
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Yoshifumi Watanabe, Kazuyuki Ando, Manami Shimizu
  • Publication number: 20180086927
    Abstract: A colored resin particle dispersion having improved fixation to the printed item immediately after printing and improved color development properties for the printed item, and an inkjet ink containing the colored resin particle dispersion. The colored resin particle dispersion contains colored resin particles, a basic dispersant, and a non-aqueous solvent, wherein the colored resin particles contain a colorant and a (meth)acrylic-based resin, and the (meth)acrylic-based resin has a unit A having a carboxyl group, a unit B having a phosphoric acid group and/or a phosphate ester group, and a unit C having an aromatic ring.
    Type: Application
    Filed: August 24, 2017
    Publication date: March 29, 2018
    Inventors: Manami SHIMIZU, Yoshifumi WATANABE