Patents by Inventor Nobuhiro Koga

Nobuhiro Koga 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: 20240000198
    Abstract: A polyester woven-fabric hook-and-loop fastener has a warp yarn thickness Tb which is 0.94 times or less of a warp yarn thickness Ts. A selvage area having a constant width is present on two opposite ends, continuously in a line form in the warp direction, without misalignment in the weft direction. As a result, when the polyester woven-fabric hook-and-loop fastener is sewn onto a garment or the like, a sewing thread sewn to the selvage area is in a straight line without meandering, and thus a sewn product excellent in appearance can be obtained.
    Type: Application
    Filed: November 1, 2021
    Publication date: January 4, 2024
    Applicant: Kuraray Fastening Co., Ltd.
    Inventors: Makoto Sagara, Yoshikatsu Fujisawa, Nobuhiro Koga
  • Publication number: 20230112098
    Abstract: A water-soluble male-type molded hook-and-loop fastener includes a substrate and a plurality of male-type engaging elements, arranged in rows, protruding from the substrate surface. The engaging elements have a shape rising from the substrate surface and curving mid-course in a row direction, or a shape rising from the substrate surface, branching forward and backward mid-course in the row direction and curving in the row direction, with tip portions oriented toward the substrate surface in either shape. The substrate and the engaging elements both contain a mixture of a polyvinyl alcohol, 5 to 30 parts by mass of a polyhydric alcohol- or ethylene oxide-based polymer, and 3 to 20 parts by mass of a layered inorganic particle, based on 100 parts by mass of the polyvinyl alcohol. The polyvinyl alcohol has a degree of polymerization of 300 to 700 and a degree of saponification of 60 to 80% by mole.
    Type: Application
    Filed: February 26, 2021
    Publication date: April 13, 2023
    Applicants: KURARAY FASTENING CO., LTD., KURARAY CO., LTD.
    Inventors: Nobuhiro Koga, Hideki Kamada, Satoru Ono, Yoshikatsu Fujisawa
  • Publication number: 20220402369
    Abstract: Provided is an electric work machine powerable by an external power supply through a power supply cable. The electric work machine includes a machine body including an electric motor, a power receiving device supplied with power through the power feed cable, connection wires extending from the power receiving device, a power feed cable connected to the machine body and a connection unit. The connection unit is disposed outside the power receiving device and connects the power feed cable and the connection wires to each other.
    Type: Application
    Filed: May 19, 2022
    Publication date: December 22, 2022
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Nobuhiro KOGA, Kazuki TAMIYA, Nobuya SAKAGUCHI
  • Publication number: 20220403620
    Abstract: Provided is an electric work machine that allows an operator to know information on the state of power supply to the motor. The electric work machine includes: a work machine body connectable to a power supply unit; an electric motor mounted on the work machine body and driven by electric power supplied from a power supply unit; a hydraulic pump mounted on the work machine body and driven by an electric motor to discharge hydraulic fluid; a hydraulic actuator mounted on the work machine body and actuated by hydraulic fluid; a motor controller that detects a power supply state which is a state of supply of electric power from the power supply unit to the electric motor; and a notification unit that notifies an operator of information on the detected power supply state.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 22, 2022
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Nobuhiro KOGA, Kazuki TAMIYA, Nobuya SAKAGUCHI
  • Patent number: 11425971
    Abstract: A shaped hook member of hook-and-loop fastener including a base plate and a plurality of hook-type engaging elements that rise from a surface of the base plate. The hook-type engaging elements are each tapered from the proximal end to the distal end, and are each curved from a point in the course from the proximal end to the distal end, and the distal end is directed toward the base plate. The plurality of hook-type engaging elements are arranged in rows extending in the same direction as the curving direction of the hook-type engaging elements, and the curving directions of the hook-type engaging elements in two adjacent rows or two adjacent units each of two or more rows are opposite to each other. The base plate and the hook-type engaging element are formed of a semi-aromatic polyamide resin containing a semi-aromatic polyamide and an elastomer.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: August 30, 2022
    Assignee: KURARAY FASTENING CO., LTD.
    Inventors: Satoru Ono, Nobuhiro Koga, Toshiaki Hasegawa
  • Publication number: 20220175093
    Abstract: A molded hook surface fastener having a base plate and a large number of hook engaging elements projecting from a surface of the base plate, wherein both the base plate and the hook engaging elements is made of a resin mixture comprising polybutylene succinate (A) as a continuous phase and starch (B) as a dispersed phase, and satisfying the following requirements (1) to (3) simultaneously: (1) the dispersed phase comprises polyvinyl alcohol (C); (2) the starch (B) comprises a modified starch, and an amylose content of the starch (B) is 45% by weight or more; and (3) the hook engaging element tapers from a surface of the base plate toward a distal end portion and gradually bends from its middle such that the distal end portion faces a direction slightly approaching the surface of the base plate, is produced without breaking the hook engaging element during the pultrusion molding and is decomposed in the natural environment and does not bring about environmental destruction when discarded.
    Type: Application
    Filed: March 26, 2020
    Publication date: June 9, 2022
    Applicants: KURARAY FASTENING CO., LTD., KURARAY CO., LTD.
    Inventors: Nobuhiro KOGA, Satoru ONO, Junya IDE, Yoshikatsu FUJISAWA
  • Publication number: 20210337937
    Abstract: A shaped hook member of hook-and-loop fastener including a base plate and a plurality of hook-type engaging elements that rise from a surface of the base plate. The hook-type engaging elements are each tapered from the proximal end to the distal end, and are each curved from a point in the course from the proximal end to the distal end, and the distal end is directed toward the base plate. The plurality of hook-type engaging elements are arranged in rows extending in the same direction as the curving direction of the hook-type engaging elements, and the curving directions of the hook-type engaging elements in two adjacent rows or two adjacent units each of two or more rows are opposite to each other. The base plate and the hook-type engaging element are formed of a semi-aromatic polyamide resin containing a semi-aromatic polyamide and an elastomer.
    Type: Application
    Filed: October 21, 2019
    Publication date: November 4, 2021
    Applicant: KURARAY FASTENING CO., LTD.
    Inventors: Satoru ONO, Nobuhiro KOGA, Toshiaki HASEGAWA
  • Patent number: 10772391
    Abstract: The present invention relates to a molded hook fastener having excellent fire retardancy and low fuming property, and having a substrate and a large number of engaging elements projecting from a surface of the substrate, wherein both the substrate and the engaging elements contain a resin composition in which a polyester-based elastomer resin (A) and a polyetherimide-based resin (B) are mixed with a weight ratio (A)/(B) in a range of 2/98 to 70/30.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: September 15, 2020
    Assignees: KURARAY FASTENING CO., LTD., KURARAY CO., LTD.
    Inventors: Atsushi Shimizu, Munenori Kumagai, Nobuhiro Koga
  • Publication number: 20200015552
    Abstract: The present invention relates to a molded hook fastener having excellent fire retardancy and low fuming property, and having a substrate and a large number of engaging elements projecting from a surface of the substrate, wherein both the substrate and the engaging elements contain a resin composition in which a polyester-based elastomer resin (A) and a polyetherimide-based resin (B) are mixed with a weight ratio (A)/(B) in a range of 2/98 to 70/30.
    Type: Application
    Filed: September 21, 2017
    Publication date: January 16, 2020
    Applicants: Kuraray Fastening Co., Ltd., Kuraray Co., Ltd.
    Inventors: Atsushi SHIMIZU, Munenori KUMAGAI, Nobuhiro KOGA
  • Patent number: 10378180
    Abstract: Provided is a working machine including first and second members, an angle detection device and a connection pin connected to the first and second members to rotate integrally with the second member relative to the first member. The angle detection device has a marker, an angle sensor and a guard member, which has a main guard portion covering the angle sensor and including an inner opposite surface opposed to an end surface of the projecting end portion and a guard-member-side engagement portion. One of the angle sensor and the marker is disposed on the inner opposite surface, the other disposed on the end surface. The first member has a first-member-side engagement portion engaging with the guard-member-side engagement portion to restrain the main guard portion from relative rotation. The guard member can contact with the connection pin to restrain the guard member from relative displacement to the projecting end portion.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: August 13, 2019
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Yoshinobu Hosaka, Nobuhiro Koga, Takanobu Nakamura
  • Patent number: 10259686
    Abstract: Simplification of a device configuration and control is realized, which enables attraction and release by a magnet without using a battery. A magnet work machine includes a generator motor (8) driven by an engine (7); and an inverter (10) which controls a magnet (6) and the generator motor (8) such that the magnet (6) is energized by electric power from the generator motor (8) to attract metal scraps or the like, and during demagnetization for releasing metal scraps or the like, electric power applied to the magnet (6) is transmitted to the generator motor (8) as regenerative power so as to be consumed. The inverter (10) determines a torque of the generator motor (8) as a motor according to a voltage change of a main circuit based on a detected main circuit voltage so as to suppress the voltage change, and gives the torque as a command.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: April 16, 2019
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Natsuki Yumoto, Nobuhiro Koga, Hideki Yoshihara, Yoshitsugu Tamura, Yoshifumi Asai
  • Patent number: 10252499
    Abstract: A process includes forming a transfer film without a release layer in which the transfer film includes a substrate layer to be peeled off during a transfer process, and a transfer layer to be transferred to an article to be decorated. The transfer layer has a protective layer, a printed or vapor-deposited decorative layer, and an adhering layer, which are laminated in this order. The substrate layer is a base film of a synthetic resin formed by extruding a molten synthetic resin. The substrate layer is so laminated and thermally compressed in direct contact with the protective layer such that the substrate layer does not peel off the protective layer before the transfer process and peels off the protective layer from a peeled end portion of the substrate layer as a trigger during the transfer process, by thermally pressing the substrate layer and the protective layer between rolls.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: April 9, 2019
    Assignee: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Eiichi Takahashi, Nobuhiro Koga, Yasuyuki Imaizumi
  • Publication number: 20180179026
    Abstract: Simplification of a device configuration and control is realized, which enables attraction and release by a magnet without using a battery. A magnet work machine includes a generator motor (8) driven by an engine (7); and an inverter (10) which controls a magnet (6) and the generator motor (8) such that the magnet (6) is energized by electric power from the generator motor (8) to attract metal scraps or the like, and during demagnetization for releasing metal scraps or the like, electric power applied to the magnet (6) is transmitted to the generator motor (8) as regenerative power so as to be consumed. The inverter (10) determines a torque of the generator motor (8) as a motor according to a voltage change of a main circuit based on a detected main circuit voltage so as to suppress the voltage change, and gives the torque as a command.
    Type: Application
    Filed: June 14, 2016
    Publication date: June 28, 2018
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Natsuki YUMOTO, Nobuhiro KOGA, Hideki YOSHIHARA, Yoshitsugu TAMURA, Yoshifumi ASAI
  • Publication number: 20170306587
    Abstract: Provided is a working machine including first and second members, an angle detection device and a connection pin connected to the first and second members to rotate integrally with the second member relative to the first member. The angle detection device has a marker, an angle sensor and a guard member, which has a main guard portion covering the angle sensor and including an inner opposite surface opposed to an end surface of the projecting end portion and a guard-member-side engagement portion. One of the angle sensor and the marker is disposed on the inner opposite surface, the other disposed on the end surface. The first member has a first-member-side engagement portion engaging with the guard-member-side engagement portion to restrain the main guard portion from relative rotation. The guard member can contact with the connection pin to restrain the guard member from relative displacement to the projecting end portion.
    Type: Application
    Filed: March 7, 2017
    Publication date: October 26, 2017
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Yoshinobu HOSAKA, Nobuhiro KOGA, Takanobu NAKAMURA
  • Publication number: 20160214362
    Abstract: A process includes forming a transfer film without a release layer in which the transfer film includes a substrate layer to be peeled off during a transfer process, and a transfer layer to be transferred to an article to be decorated. The transfer layer has a protective layer, a printed or vapor-deposited decorative layer, and an adhering layer, which are laminated in this order. The substrate layer is a base film of a synthetic resin formed by extruding a molten synthetic resin. The substrate layer is so laminated and thermally compressed in direct contact with the protective layer such that the substrate layer does not peel off the protective layer before the transfer process and peels off the protective layer from a peeled end portion of the substrate layer as a trigger during the transfer process, by thermally pressing the substrate layer and the protective layer between rolls.
    Type: Application
    Filed: April 6, 2016
    Publication date: July 28, 2016
    Applicant: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Eiichi TAKAHASHI, Nobuhiro KOGA, Yasuyuki IMAIZUMI
  • Patent number: 8904777
    Abstract: A pump control device for a construction machine includes a pump regulator, a pump pressure detector, a travelling operation detector, a working operation detector, and a controller instructing the pump flow rate depending on the pump pressure to the pump regulator. The controller stores first and second P-Q characteristics as a horsepower characteristic and instructs the pump flow rate to the pump regulator, based on the first P-Q characteristic when a travelling operation is detected, and based on the second P-Q characteristic when a working operation is detected. The second P-Q characteristic is equal to the first P-Q characteristic in a low-pressure region while is one giving a low characteristic relatively to the first P-Q characteristic so as to increase a horsepower difference as the pump pressure increases, in intermediate-pressure and high-pressure regions.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: December 9, 2014
    Assignee: Kobelco Construction Machinery Co., Ltd.
    Inventor: Nobuhiro Koga
  • Publication number: 20140342629
    Abstract: Provided is a composite fiber capable of forming a fabric giving a good wearing feeling to a human body. This composite fiber is composed of a polyurethane elastomer having a glass transition temperature of 15 to 50° C. as a component A, and a readily soluble thermoplastic polymer as a component B. In a cross section of the fiber, the component A constitutes a core, and the component B covers 70% or longer of the circumference of the component A. The component B may be, for example, a readily soluble polyester or thermoplastic polyvinyl alcohol-based polymer. The composite ratio (mass ratio) of the component A to the component B may be 90:10 to 40:60.
    Type: Application
    Filed: July 31, 2014
    Publication date: November 20, 2014
    Applicant: KURARAY CO., LTD.
    Inventors: Hitoshi NAKATSUKA, Nobuhiro KOGA, Eiji AKIBA, Shunichi HAYASHI
  • Publication number: 20140130978
    Abstract: A process includes forming a transfer film without a release layer in which the transfer film includes a substrate layer to be peeled off during a transfer process, and a transfer layer to be transferred to an article to be decorated. The transfer layer has a protective layer, a printed or vapor-deposited decorative layer, and an adhering layer, which are laminated in this order. The substrate layer is a base film of a synthetic resin formed by extruding a molten synthetic resin. The substrate layer is so laminated and thermally compressed in direct contact with the protective layer such that the substrate layer does not peel off the protective layer before the transfer process and peels off the protective layer from a peeled end portion of the substrate layer as a trigger during the transfer process, by thermally pressing the substrate layer and the protective layer between rolls.
    Type: Application
    Filed: January 17, 2014
    Publication date: May 15, 2014
    Applicant: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Eiichi TAKAHASHI, Nobuhiro KOGA, Yasuyuki IMAIZUMI
  • Publication number: 20120247094
    Abstract: A pump control device for a construction machine includes a pump regulator, a pump pressure detector, a travelling operation detector, a working operation detector, and a controller instructing the pump flow rate depending on the pump pressure to the pump regulator. The controller stores first and second P-Q characteristics as a horsepower characteristic and instructs the pump flow rate to the pump regulator, based on the first P-Q characteristic when a travelling operation is detected, and based on the second P-Q characteristic when a working operation is detected. The second P-Q characteristic is equal to the first P-Q characteristic in a low-pressure region while is one giving a low characteristic relatively to the first P-Q characteristic so as to increase a horsepower difference as the pump pressure increases, in intermediate-pressure and high-pressure regions.
    Type: Application
    Filed: February 21, 2012
    Publication date: October 4, 2012
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventor: Nobuhiro KOGA
  • Patent number: 7824769
    Abstract: In an electrically conductive sheath-core conjugate fiber including an electrically conductive layer made of a thermoplastic polymer (A) containing electrically conductive carbon black fine particles which constitutes a sheath component and a protective layer made of a fiber-forming thermoplastic polymer (B) which constitutes a core component, the ratio of the (A) to the total weight of the (A) and the (B) is 10 to 35% by weight, the L1/L0 ratio is 1.04 to 10.0 where L1 represents the length of a boundary between the core component and the sheath component in a cross section of the conjugate fiber and L0 represents the length of the circumference of a circle having an area equal to a cross sectional area of the core component, the fineness, the strength at break and the elongation at break are each adjusted within specified ranges, the shrinkage in hot water at 100° C. is within a specified range, and the fiber surface coverage of the sheath component is 85% or more.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: November 2, 2010
    Assignee: Kuraray Co., Ltd.
    Inventors: Hitoshi Nakatsuka, Tadayoshi Koizumi, Kazuhiko Tanaka, Nobuhiro Koga, Masao Kawamoto, Kenichi Yoshioka