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).
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Patent number: 11923950Abstract: 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: GrantFiled: October 25, 2019Date of Patent: March 5, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Naotaka Shibata, Hirofumi Yamamoto, Keita Takahashi, Noriyuki Ota, Jun Terada
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Patent number: 11433946Abstract: 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: GrantFiled: August 6, 2020Date of Patent: September 6, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yasuhide Matsuo, Ayaka Kagami, Hiroshi Ichinose, Minoru Sawafuji, Hirofumi Shibata
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Publication number: 20210114661Abstract: 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: ApplicationFiled: August 6, 2020Publication date: April 22, 2021Inventors: Yasuhide MATSUO, Ayaka KAGAMI, Hiroshi ICHINOSE, Minoru SAWAFUJI, Hirofumi SHIBATA
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Patent number: 10661740Abstract: 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: GrantFiled: June 20, 2018Date of Patent: May 26, 2020Assignees: Aisin Seiki Kabushiki Kaisha, Aisin Keikinzoku Kabushiki Kaisha, Toyota Jidosha Kabushiki KaishaInventors: Shunji Shibata, Kiyoichi Kita, Jun Shobo, Kyosuke Matsui, Tamaki Obayashi, Yuta Takanami, Hirofumi Shibata, Koji Saeki
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Patent number: 10493429Abstract: 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: GrantFiled: January 30, 2012Date of Patent: December 3, 2019Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Kozo Nogi, Masatoshi Nakamura, Hirofumi Shibata, Koji Honda, Yusuke Watanabe, Satoshi Matsumoto, Reiko Nakatsuru, Kunihiko Ishizaki
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Patent number: 10414364Abstract: 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: GrantFiled: July 11, 2017Date of Patent: September 17, 2019Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha, Aisin Keikinzoku Kabushiki KaishaInventors: Takanobu Kaneko, Hiroharu Iizuka, Kiyoichi Kita, Jun Shobo, Kyosuke Matsui, Tamaki Obayashi, Hirofumi Shibata
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Patent number: 10179558Abstract: 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: GrantFiled: September 15, 2017Date of Patent: January 15, 2019Assignees: Aisin Seiki Kabushiki Kaisha, Aisin Keikinzoku Kabushiki KaishaInventors: Takanobu Kaneko, Kiyoichi Kita, Jun Shobo, Kyosuke Matsui, Yuta Takanami, Hirofumi Shibata
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Publication number: 20180370469Abstract: 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: ApplicationFiled: June 20, 2018Publication date: December 27, 2018Applicants: AISIN SEIKI KABUSHIKI KAISHA, AISIN KEIKINZOKU KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shunji SHIBATA, Kiyoichi KITA, Jun SHOBO, Kyosuke MATSUI, Tamaki OBAYASHI, Yuta TAKANAMI, Hirofumi SHIBATA, Koji SAEKI
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Publication number: 20180079380Abstract: 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: ApplicationFiled: September 15, 2017Publication date: March 22, 2018Applicants: AISIN SEIKI KABUSHISIKI KAISHA, AISIN KEIKINZOKU KABUSHIKI KAISHAInventors: Takanobu KANEKO, Kiyoichi KITA, Jun SHOBO, Kyosuke MATSUI, Yuta TAKANAMI, Hirofumi SHIBATA
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Publication number: 20180015895Abstract: 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: ApplicationFiled: July 11, 2017Publication date: January 18, 2018Applicants: AISIN SEIKI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN KEIKINZOKU KABUSHIKI KAISHAInventors: Takanobu KANEKO, Hiroharu IIZUKA, Kiyoichi KITA, Jun SHOBO, Kyosuke MATSUI, Tamaki OBAYASHI, Hirofumi SHIBATA
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Patent number: 9567414Abstract: 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 solType: GrantFiled: January 30, 2012Date of Patent: February 14, 2017Assignee: 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
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Patent number: 9180220Abstract: 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: GrantFiled: May 9, 2012Date of Patent: November 10, 2015Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Kazushi Torii, Hirofumi Shibata, Kazuki Kimura, Yasuhisa Nakashima, Motohiro Imura, Hiroko Ueda, Katsuyuki Wada
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Patent number: 8846823Abstract: 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: GrantFiled: April 28, 2005Date of Patent: September 30, 2014Assignee: Nippon Shokubai Co., Ltd.Inventors: Masatoshi Nakamura, Koji Miyake, Hirofumi Shibata
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Publication number: 20140042364Abstract: 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: ApplicationFiled: January 30, 2012Publication date: February 13, 2014Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Kozo Nogi, Masatoshi Nakamura, Hirofumi Shibata, Koji Honda, Yusuke Watanabe, Satoshi Matsumoto, Reiko Nakatsuru, Kunihiko Ishizaki
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Publication number: 20140031473Abstract: 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 soluType: ApplicationFiled: January 30, 2012Publication date: January 30, 2014Applicant: 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
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Patent number: 8497226Abstract: 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: GrantFiled: August 13, 2010Date of Patent: July 30, 2013Assignee: Nippon Shokubai Co., Ltd.Inventors: Kazushi Torii, Hirofumi Shibata, Taku Iwamura, Yoshio Irie, Yorimichi Dairoku, Yoshiro Mitsukami, Sayaka Machida
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Patent number: 8383746Abstract: 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: GrantFiled: March 20, 2007Date of Patent: February 26, 2013Assignee: Nippon Shokubai Co., LtdInventors: Kazushi Torii, Hirofumi Shibata
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Publication number: 20120305842Abstract: 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: ApplicationFiled: May 9, 2012Publication date: December 6, 2012Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Kazushi Torii, Hirofumi Shibata, Kazuki Kimura, Yasuhisa Nakashima, Motohiro Imura, Hiroko Ueda, Katsuyuki Wada
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Patent number: 8198209Abstract: 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: GrantFiled: March 20, 2007Date of Patent: June 12, 2012Assignee: Nippon Shokubai Co., Ltd.Inventors: Kazushi Torii, Hirofumi Shibata, Kazuki Kimura, Yasuhisa Nakashima, Motohiro Imura, Hiroko Ueda, Katsuyuki Wada
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Patent number: 7919564Abstract: 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: GrantFiled: September 28, 2006Date of Patent: April 5, 2011Assignee: Nippon Shokubai Co., Ltd.Inventors: Hirofumi Shibata, Kazushi Torii