Patents by Inventor Hirofumi Shibata

Hirofumi Shibata 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: 11923950
    Abstract: A relay device that relays between a plurality of radio devices that perform radio communication with terminals, and at least one radio control device that controls the radio devices, the relay device including: a replication necessity determination unit that determines whether or not to replicate a downlink signal received from the radio control device; a signal replicating unit that makes the same number of copies of a downlink signal as the number of destination radio devices only when the replication necessity determination unit determines that the downlink signal is to be replicated; and a downlink signal assignment unit that transfers a downlink signal that has been determined by the replication necessity determination unit as a signal that is not to be replicated, and downlink signals replicated by the signal replicating unit, to the radio devices respectively corresponding thereto.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: March 5, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Naotaka Shibata, Hirofumi Yamamoto, Keita Takahashi, Noriyuki Ota, Jun Terada
  • Patent number: 11433946
    Abstract: A vehicle support member that is die-cast includes a fixing portion configured to fix a device arranged in a power unit room, and a fixing-portion connecting rib connecting the fixing portion and an outer peripheral wall supported on a pair of front side members constituting a vehicle body and located on an outer side of the power unit room in a width direction of a vehicle.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: September 6, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuhide Matsuo, Ayaka Kagami, Hiroshi Ichinose, Minoru Sawafuji, Hirofumi Shibata
  • Publication number: 20210114661
    Abstract: A vehicle support member that is die-cast includes a fixing portion configured to fix a device arranged in a power unit room, and a fixing-portion connecting rib connecting the fixing portion and an outer peripheral wall supported on a pair of front side members constituting a vehicle body and located on an outer side of the power unit room in a width direction of a vehicle.
    Type: Application
    Filed: August 6, 2020
    Publication date: April 22, 2021
    Inventors: Yasuhide MATSUO, Ayaka KAGAMI, Hiroshi ICHINOSE, Minoru SAWAFUJI, Hirofumi SHIBATA
  • Patent number: 10661740
    Abstract: A bumper reinforcement includes a front wall, a rear wall, and a connection wall. Intermediate portions, in an extending direction, of the front wall and the rear wall are parallel to each other. An end portion, in the extending direction, of the front wall is bent toward the rear wall when viewed from the intermediate portion of the front wall. An end portion, in the extending direction, of the connection wall includes a front part and a rear part, and each of the front and rear parts extends from an inside to an outside in the vehicle width direction. A distance between a front end of the rear part and the rear wall gradually decreases in a direction from a base end of the rear part toward a distal end thereof. The front part is provided so as to extend along the front end of the rear part.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: May 26, 2020
    Assignees: Aisin Seiki Kabushiki Kaisha, Aisin Keikinzoku Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha
    Inventors: Shunji Shibata, Kiyoichi Kita, Jun Shobo, Kyosuke Matsui, Tamaki Obayashi, Yuta Takanami, Hirofumi Shibata, Koji Saeki
  • Patent number: 10493429
    Abstract: From a view pint of decreasing an out of spec product after surface crosslinking, particularly, when an alkylene carbonate compound is used as a surface crosslinking agent, influence due to an air temperature is great, and it is necessary to reduce ethylene glycol which is produced as a byproduct. There is provided a process for producing a polyacrylic acid (salt)-based water absorbent resin powder, comprising storing a non-polymerized organic compound being a raw material (modified raw material) of a water absorbent resin powder in a heated state, thereafter, mixing the non-polymerized organic compound with other compound at a predetermined ratio and, further, mixing the mixture into a water absorbent resin powder.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: December 3, 2019
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Kozo Nogi, Masatoshi Nakamura, Hirofumi Shibata, Koji Honda, Yusuke Watanabe, Satoshi Matsumoto, Reiko Nakatsuru, Kunihiko Ishizaki
  • Patent number: 10414364
    Abstract: A bumper reinforcement includes a body part extending in a vehicle width direction, and a terminal part, which extends in the vehicle width direction, is attached to an end part of the body part in a longitudinal direction, and is joined to the body part in a state of being superimposed on the end part of the body part. Rigidity of the end part of the body part in the longitudinal direction is lower than rigidity of a center part of the body part in the longitudinal direction.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: September 17, 2019
    Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha, Aisin Keikinzoku Kabushiki Kaisha
    Inventors: Takanobu Kaneko, Hiroharu Iizuka, Kiyoichi Kita, Jun Shobo, Kyosuke Matsui, Tamaki Obayashi, Hirofumi Shibata
  • Patent number: 10179558
    Abstract: The bumper reinforcement has a front surface flange, an upper surface web, a lower surface web, an upper lip, and a lower lip. An end of the upper surface web on the upper lip side is thicker than a center. When a collision load is applied to the front surface flange, the upper surface web extending in a direction orthogonal to the front surface flange from vicinity of an upper end of the front surface flange is deformed in an outward opened direction, and the upper lip extending downward from an extension end of the upper surface web is deformed in an inward closed direction.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: January 15, 2019
    Assignees: Aisin Seiki Kabushiki Kaisha, Aisin Keikinzoku Kabushiki Kaisha
    Inventors: Takanobu Kaneko, Kiyoichi Kita, Jun Shobo, Kyosuke Matsui, Yuta Takanami, Hirofumi Shibata
  • Publication number: 20180370469
    Abstract: A bumper reinforcement includes a front wall, a rear wall, and a connection wall. Intermediate portions, in an extending direction, of the front wall and the rear wall are parallel to each other. An end portion, in the extending direction, of the front wall is bent toward the rear wall when viewed from the intermediate portion of the front wall. An end portion, in the extending direction, of the connection wall includes a front part and a rear part, and each of the front and rear parts extends from an inside to an outside in the vehicle width direction. A distance between a front end of the rear part and the rear wall gradually decreases in a direction from a base end of the rear part toward a distal end thereof. The front part is provided so as to extend along the front end of the rear part.
    Type: Application
    Filed: June 20, 2018
    Publication date: December 27, 2018
    Applicants: AISIN SEIKI KABUSHIKI KAISHA, AISIN KEIKINZOKU KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shunji SHIBATA, Kiyoichi KITA, Jun SHOBO, Kyosuke MATSUI, Tamaki OBAYASHI, Yuta TAKANAMI, Hirofumi SHIBATA, Koji SAEKI
  • Publication number: 20180079380
    Abstract: The bumper reinforcement has a front surface flange, an upper surface web, a lower surface web, an upper lip, and a lower lip. An end of the upper surface web on the upper lip side is thicker than a center. When a collision load is applied to the front surface flange, the upper surface web extending in a direction orthogonal to the front surface flange from vicinity of an upper end of the front surface flange is deformed in an outward opened direction, and the upper lip extending downward from an extension end of the upper surface web is deformed in an inward closed direction.
    Type: Application
    Filed: September 15, 2017
    Publication date: March 22, 2018
    Applicants: AISIN SEIKI KABUSHISIKI KAISHA, AISIN KEIKINZOKU KABUSHIKI KAISHA
    Inventors: Takanobu KANEKO, Kiyoichi KITA, Jun SHOBO, Kyosuke MATSUI, Yuta TAKANAMI, Hirofumi SHIBATA
  • Publication number: 20180015895
    Abstract: A bumper reinforcement includes a body part extending in a vehicle width direction, and a terminal part, which extends in the vehicle width direction, is attached to an end part of the body part in a longitudinal direction, and is joined to the body part in a state of being superimposed on the end part of the body part. Rigidity of the end part of the body part in the longitudinal direction is lower than rigidity of a center part of the body part in the longitudinal direction.
    Type: Application
    Filed: July 11, 2017
    Publication date: January 18, 2018
    Applicants: AISIN SEIKI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN KEIKINZOKU KABUSHIKI KAISHA
    Inventors: Takanobu KANEKO, Hiroharu IIZUKA, Kiyoichi KITA, Jun SHOBO, Kyosuke MATSUI, Tamaki OBAYASHI, Hirofumi SHIBATA
  • Patent number: 9567414
    Abstract: From a view point of reduction in an out of spec product after surface crosslinking, particularly, when an alkylene carbonate compound is used as a surface crosslinking agent, influence by an air temperature is great, and it is necessary to reduce ethylene glycol which is produced as a byproduct, and there is provided a process for producing a polyacrylic acid (salt)-based water absorbent resin powder, comprising a step of polymerizing an aqueous acrylic acid (salt)-based monomer solution, a step of drying the resulting polymer, an optional grinding•classifying step, and a surface crosslinking step, wherein in the surface crosslinking step, (1) a surface crosslinking agent containing an alkylene carbonate compound and a polyhydric alcohol compound is mixed into a water absorbent resin powder, the mixture is heat-reacted and, further, simultaneously with, or separately from the mixing, an ion reactive surface crosslinking agent is mixed, and/or (2) mixing treatment of mixing a surface crosslinking agent sol
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: February 14, 2017
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Kozo Nogi, Masatoshi Nakamura, Hirofumi Shibata, Koji Honda, Yusuke Watanabe, Satoshi Matsumoto, Reiko Nakatsuru, Kunihiko Ishizaki, Kazuki Kimura, Sayaka Machida
  • Patent number: 9180220
    Abstract: A water absorbing agent of the present invention has an internal crosslinking structure obtained by polymerization of a water-soluble unsaturated monomer. The agent satisfies conditions (a) to (d): (a) the agent contains water-insoluble inorganic particles at an amount of from 10 ppm to 1,900 ppm inclusive; (b) the agent contains 5 mass % or less particles which have such a size that they can pass through a sieve having a mesh opening size of 150 ?m; (c) the agent has an absorbency against a pressure of 4.83 kPa (AAP) of 18 g/g or more; and (d) the water-insoluble inorganic particles reside on a surface of the water absorbing resin or near the surface.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: November 10, 2015
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Kazushi Torii, Hirofumi Shibata, Kazuki Kimura, Yasuhisa Nakashima, Motohiro Imura, Hiroko Ueda, Katsuyuki Wada
  • Patent number: 8846823
    Abstract: A water absorbing agent and a method for producing the water absorbing agent are disclosed. Water absorbent resin particles having an internal cross-linked structure obtained by polymerizing a water-soluble unsaturated monomer, organic acid, and water-soluble multivalent metal salt are mixed, so that it is possible to provide a water absorbing agent which suppresses permeation of metal components into the water absorbent resin particles and enables the metal components to evenly adhere to an entire surface of the water absorbent resin in a dot manner.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: September 30, 2014
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Masatoshi Nakamura, Koji Miyake, Hirofumi Shibata
  • Publication number: 20140042364
    Abstract: From a view pint of decreasing an out of spec product after surface crosslinking, particularly, when an alkylene carbonate compound is used as a surface crosslinking agent, influence due to an air temperature is great, and it is necessary to reduce ethylene glycol which is produced as a byproduct. There is provided a process for producing a polyacrylic acid (salt)-based water absorbent resin powder, comprising storing a non-polymerized organic compound being a raw material (modified raw material) of a water absorbent resin powder in a heated state, thereafter, mixing the non-polymerized organic compound with other compound at a predetermined ratio and, further, mixing the mixture into a water absorbent resin powder.
    Type: Application
    Filed: January 30, 2012
    Publication date: February 13, 2014
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Kozo Nogi, Masatoshi Nakamura, Hirofumi Shibata, Koji Honda, Yusuke Watanabe, Satoshi Matsumoto, Reiko Nakatsuru, Kunihiko Ishizaki
  • Publication number: 20140031473
    Abstract: From a viewpoint of reduction in an out of spec product after surface crosslinking, particularly, when an alkylene carbonate compound is used as a surface crosslinking agent, influence by an air temperature is great, and it is necessary to reduce ethylene glycol which is produced as a byproduct, and there is provided a process for producing a polyacrylic acid (salt)-based water absorbent resin powder, comprising a step of polymerizing an aqueous acrylic acid (salt)-based monomer solution, a step of drying the resulting polymer, an optional grinding•classifying step, and a surface crosslinking step, wherein in the surface crosslinking step, (1) a surface crosslinking agent containing an alkylene carbonate compound and a polyhydric alcohol compound is mixed into a water absorbent resin powder, the mixture is heat-reacted and, further, simultaneously with, or separately from the mixing, an ion reactive surface crosslinking agent is mixed, and/or (2) mixing treatment of mixing a surface crosslinking agent solu
    Type: Application
    Filed: January 30, 2012
    Publication date: January 30, 2014
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Kozo Nogi, Masatoshi Nakamura, Hirofumi Shibata, Koji Honda, Yusuke Watanabe, Satoshi Matsumoto, Reiko Nakatsuru, Kunihiko Ishizaki, Kazuki Kimura, Sayaka Machida
  • Patent number: 8497226
    Abstract: An object of the present invention is to provide a water absorbent having excellent gel properties and showing excellent properties when used in a water-absorbing material of a sanitary/hygienic material such as paper diaper. Moreover, another object of the present invention is to provide a water absorbent which is safe and excellent in liquid permeability, and in which an amount of liquid permeability improver for improving the liquid permeability is reduced. The water absorbent is made from a water-absorbing resin prepared by a specific polymerization method and having a high degree of cross-linking, a high liquid holding property and a high gel strength (its swelling pressure of gel layer of is 35 kdyne/cm2 or more). This water absorbent is further processed to have a particular particle size distribution (95 wt % or more of its particles are less than 850ƒÊm but not less than 106ƒÊm, and logarithmic standard deviation (ƒĐƒÄ) is in a range of 0.25 to 0.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: July 30, 2013
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Kazushi Torii, Hirofumi Shibata, Taku Iwamura, Yoshio Irie, Yorimichi Dairoku, Yoshiro Mitsukami, Sayaka Machida
  • Patent number: 8383746
    Abstract: According to the present invention, the manufacturing method for the water absorbing resin involves the step of polymerizing a water-soluble unsaturated monomer, 0.06 of 5 mol % of which is composed of an internal crosslinking agent; and the step of drying a water-containing gel which has a thermally decomposing radical initiator content index of 40 to 100 at 100 to 250° C. The water absorbing resin of the present invention contains a water-soluble unsaturated monomer as a repeat unit for a major chain, 90 mol % of the monomer being composed of an acrylic acid and/or salt thereof, the resin having an internal crosslinking structure and exhibiting a weight-average molecular weight Mw of 360,000 to 1,000,000 daltons and an intrinsic viscosity IV of 2.1 to 6.0 dL/g where the weight-average molecular weight Mw and the intrinsic viscosity IV are measured after treatment under set 2 of hydrolysis conditions.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: February 26, 2013
    Assignee: Nippon Shokubai Co., Ltd
    Inventors: Kazushi Torii, Hirofumi Shibata
  • Publication number: 20120305842
    Abstract: A water absorbing agent of the present invention has an internal crosslinking structure obtained by polymerization of a water-soluble unsaturated monomer. The agent satisfies conditions (a) to (d): (a) the agent contains water-insoluble inorganic particles at an amount of from 10 ppm to 1,900 ppm inclusive; (b) the agent contains 5 mass % or less particles which have such a size that they can pass through a sieve having a mesh opening size of 150 ?m; (c) the agent has an absorbency against a pressure of 4.83 kPa (AAP) of 18 g/g or more; and (d) the water-insoluble inorganic particles reside on a surface of the water absorbing resin or near the surface.
    Type: Application
    Filed: May 9, 2012
    Publication date: December 6, 2012
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Kazushi Torii, Hirofumi Shibata, Kazuki Kimura, Yasuhisa Nakashima, Motohiro Imura, Hiroko Ueda, Katsuyuki Wada
  • Patent number: 8198209
    Abstract: A water absorbing agent of the present invention has an internal crosslinking structure obtained by polymerization of a water-soluble unsaturated monomer. The agent satisfies conditions (a) to (d): (a) the agent contains water-insoluble inorganic particles at an amount of from 10 ppm to 1,900 ppm inclusive; (b) the agent contains 5 mass % or less particles which have such a size that they can pass through a sieve having a mesh opening size of 150 ?m; (c) the agent has an absorbency against a pressure of 4.83 kPa (AAP) of 18 g/g or more; and (d) the water-insoluble inorganic particles reside on a surface of the water absorbing resin or near the surface.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: June 12, 2012
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Kazushi Torii, Hirofumi Shibata, Kazuki Kimura, Yasuhisa Nakashima, Motohiro Imura, Hiroko Ueda, Katsuyuki Wada
  • Patent number: 7919564
    Abstract: The present invention provides a method for manufacturing a particulate water-absorbing agent which has excellent liquid diffusibility and liquid permeability, and whose amount of residual monomers is reduced. The method for manufacturing the particulate water-absorbing agent of the present invention includes a step of surface-crosslinking, in the presence of an organic crosslinking agent, water-absorbing resin particles obtained through at least a step of polymerizing an aqueous solution of unsaturated monomers, and in or after the polymerizing step, a reaction system is mixed with peroxide. Thus, it is possible to obtain the particulate water-absorbing agent which has excellent liquid diffusibility and liquid permeability and whose amount of residual monomers is small, that is, it is possible to obtain the particulate water-absorbing agent which is highly functional and highly safe.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: April 5, 2011
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hirofumi Shibata, Kazushi Torii