Patents by Inventor Akifumi Sato

Akifumi Sato 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: 20200407591
    Abstract: An aqueous coating composition which does not contain any epoxy resin having a bisphenol skeleton or a biphenol skeleton, such as BPA, as a raw material, and can be formed into a coating film which has reduced adsorption of flavor odor components in can contents and has high retort resistance and processability. The aqueous coating composition includes a composite resin and water, where the composite resin includes a moiety of an epoxy resin and a moiety of a carboxyl group-containing acrylate copolymer, and the epoxy resin forming the moiety of the epoxy resin is a reaction product of an epoxy group in an epoxy compound not having any one of a bisphenol skeleton and a biphenol skeleton with a carboxyl group in a carboxyl group-containing polyester, the reaction product having an epoxy group.
    Type: Application
    Filed: April 12, 2019
    Publication date: December 31, 2020
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD., Mitsubishi Chemical Corporation
    Inventors: Shoya SATO, Akifumi TOBE, Kou MIYAMA
  • Publication number: 20200359495
    Abstract: Provided is an ultrasonic probe having ultrasonic elements and a printed-circuit board that establishes connection between the ultrasonic elements and external wiring, achieving strong connection between the ultrasonic elements and the printed-circuit board mechanically and electrically, and thereby improving performance in examination and diagnosis using the ultrasonic probe. The printed-circuit board with pads each having a via-hole to be bonded to electrode pads of a chip equipped with the ultrasonic elements, is provided with a reinforcement, in an area of the base material where the pad having the via-hole is not formed. The reinforcement is formed simultaneously with forming the pads and wiring on the printed-circuit board, having the same thickness as the pads. With the reinforcement, pressure is evenly applied to the printed-circuit board when the electrode pad is press-fitted into the pad having the via-hole, thereby preventing warping and deforming of the board.
    Type: Application
    Filed: February 4, 2020
    Publication date: November 12, 2020
    Applicant: HITACHI, LTD.
    Inventors: Yasuhiro Yoshimura, Akifumi Sako, Makoto Fukada, Masahiro Sato
  • Patent number: 10602619
    Abstract: An anisotropic conductive connection structure body includes: a first electrode terminal on a surface of which a protruding portion is formed; a second electrode terminal; and an anisotropic conductive adhesive layer containing electrically conductive particles that provide conduction between the first electrode terminal and the second electrode terminal. A ratio of a height of the protruding portion to a before-compression particle size of the electrically conductive particle is less than 60%, an opening area ratio of the first electrode terminal is more than or equal to 55%, and a height of the second electrode terminal is more than or equal to 6 ?m.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: March 24, 2020
    Assignee: DEXERIALS CORPORATION
    Inventors: Daisuke Sato, Akifumi Higuchi
  • Publication number: 20190321002
    Abstract: According to one embodiment, an ultrasonic probe includes: an oscillator; a base on which the oscillator is provided; a base conductive wire portion connected to the oscillator; a bump electrode portion supplying a signal to the oscillator via the base conductive wire portion; a pad portion engaging with the bump electrode portion; and an acoustic lens provided such that a force toward the bump electrode portion is applied to the pad portion.
    Type: Application
    Filed: March 20, 2019
    Publication date: October 24, 2019
    Inventors: Yasuhiro YOSHIMURA, Akifumi SAKO, Masahiro SATO
  • Patent number: 8717127
    Abstract: A molded case houses switching parts and includes a case main body and a cover placed on an upper portion of the case main body. The case main body includes a bottom portion case that forms a bottom portion of a circuit breaker and an intermediate case, placed on an upper portion of the bottom portion case, having a dividing wall that blocks off a space between the intermediate case and the bottom portion case. A power source side terminal block and second movable contact are fitted inside the bottom portion case, and a first movable contact, the load side terminal block, the contact portion, and the arc extinguishing chamber are fitted inside the intermediate case.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: May 6, 2014
    Assignee: Fuji Electric FA Components & Systems Co., Ltd.
    Inventors: Shinichiro Ando, Koji Asakawa, Akifumi Sato, W. P. Hemantha Desilva, Tomoo Yamazaki
  • Publication number: 20140048513
    Abstract: It is possible to extend an arc as far as an arc extinguishing chamber without increasing an opening distance of a movable contact, and to increase an arc voltage, thus improving the breaking performance, without changing a switching mechanism or increasing a size of the external form of a circuit breaker. A circuit breaker includes a breaking portion having a fixed contact and movable contact, and an arc extinguishing chamber disposed so as to enclose the breaking portion. An insulating arm made of an insulator is provided to be capable of advancing into and withdrawing from the space between contact points of the fixed contact and movable contact. Further, the insulating arm advances to a position between the contact points when the movable contact carries out an opening operation, and withdraws from the space between the contact points when the movable contact carries out a closing operation.
    Type: Application
    Filed: July 2, 2013
    Publication date: February 20, 2014
    Inventors: Yutaka SATO, Akifumi SATO
  • Publication number: 20130162377
    Abstract: A molded case housing each part is configured of a case main body (54) and a cover (55) placed on an upper portion of the case main body, the case main body (54) is configured of a bottom portion case (56) that forms a bottom portion of a circuit breaker and an intermediate case (57), placed on an upper portion of the bottom portion case, having a dividing wall that blocks off a space between the intermediate case and the bottom portion case. A power source side terminal block (3) and second movable contact (4) are fitted inside the bottom portion case, and a first movable contact (5), the load side terminal block (9), the contact portion (52), and the arc extinguishing chamber (6) are fitted inside the intermediate case.
    Type: Application
    Filed: September 12, 2011
    Publication date: June 27, 2013
    Inventors: Shinichiro Ando, Koji Asakawa, Akifumi Sato, W. P. Hemantha Desilva, Tomoo Yamazaki
  • Patent number: 7535327
    Abstract: A circuit breaker includes a main case containing a contactor section, an arc-extinguishing device and an overcurrent tripping device; a middle cover laid on the main case, the middle cover having in a central section thereof a recess partitioned with a bottom wall for containing a switching mechanism and at least one interior attachment; and a top cover covering the top side of the recess in the middle cover. The main case, the middle cover and the top cover are arranged to be dividable from one another. The middle cover has an auxiliary cover, covering the switching mechanism, and the auxiliary cover has the top cover mounted thereon.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: May 19, 2009
    Assignee: Fuji Electric FA Components & Systems Co., Ltd.
    Inventors: W. P. Hemantha Desilva, Koji Asakawa, Hideto Yamagata, Akifumi Sato, Yasuhiro Takahashi
  • Patent number: 7187258
    Abstract: A circuit breaker includes an elongated movable contact having a contact at one end thereof for flowing a current therethrough and the other end rotatably supported with a holder, and a protection cover made of an insulating material for covering and protecting a movable contact from short circuit and discharge. The protection cover is made of only the insulating material, covers the movable contact, and has elasticity to tightly hold the movable contact.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: March 6, 2007
    Assignee: Fuji Electric FA Components & Systems Co., Ltd.
    Inventors: Tomoo Yamazaki, Mitsuhiro Mitsushige, Koji Asakawa, Hideto Yamagata, Akifumi Sato
  • Publication number: 20070035367
    Abstract: A circuit breaker includes a main case containing a contactor section, an arc-extinguishing device and an overcurrent tripping device; a middle cover laid on the main case, the middle cover having in a central section thereof a recess partitioned with a bottom wall for containing a switching mechanism and at least one interior attachment; and a top cover covering the top side of the recess in the middle cover. The main case, the middle cover and the top cover are arranged to be dividable from one another. The middle cover has an auxiliary cover, covering the switching mechanism, and the auxiliary cover has the top cover mounted thereon.
    Type: Application
    Filed: July 25, 2006
    Publication date: February 15, 2007
    Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: W.P. Desilva, Koji Asakawa, Hideto Yamagata, Akifumi Sato, Yasuhiro Takahashi
  • Patent number: 7154062
    Abstract: A circuit breaker has a molded case with a main case, a middle cover and a top cover being dividable from one another. The main case contains contactor sections, each including a stationary contactor and a movable contactor for a pole corresponding to each phase in a polyphase circuit, an arc-extinguishing device, an overcurrent tripping device actuating a tripping mechanism by detecting an overcurrent, and a zero-phase current transformer detecting a leak current. The middle cover has a partitioned recess for containing a switching mechanism and the tripping mechanism. Interpole partitions, surrounding the contactor section and the arc-extinguishing device, and a screen-like intermediate partition, isolating the contactor sections from the overcurrent tripping device, are formed with the middle cover laid on the main case. A wall with gas outlets for an arc gas is provided on the back of the arc-extinguishing devices.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: December 26, 2006
    Assignee: Fuji Electric FA Components & Systems Co., Ltd.
    Inventors: Koji Asakawa, Mitsuhiro Mitsushige, Yasuhiro Takahashi, Akifumi Sato, Hisanobu Asano
  • Publication number: 20060191873
    Abstract: A circuit breaker has a molded case with a main case, a middle cover and a top cover being dividable from one another. The main case contains contactor sections, each including a stationary contactor and a movable contactor for a pole corresponding to each phase in a polyphase circuit, an arc-extinguishing device, an overcurrent tripping device actuating a tripping mechanism by detecting an overcurrent, and a zero-phase current transformer detecting a leak current. The middle cover has a partitioned recess for containing a switching mechanism and the tripping mechanism. Interpole partitions, surrounding the contactor section and the arc-extinguishing device, and a screen-like intermediate partition, isolating the contactor sections from the overcurrent tripping device, are formed with the middle cover laid on the main case. A wall with gas outlets for an arc gas is provided on the back of the arc-extinguishing devices.
    Type: Application
    Filed: December 22, 2005
    Publication date: August 31, 2006
    Applicant: Fuji Electric FA Components & Systems Co., Ltd.
    Inventors: Koji Asakawa, Mitsuhiro Mitsushige, Yasuhiro Takahashi, Akifumi Sato, Hisanobu Asano
  • Publication number: 20050275493
    Abstract: A circuit breaker includes an elongated movable contact having a contact at one end thereof for flowing a current therethrough and the other end rotatably supported with a holder, and a protection cover made of an insulating material for covering and protecting a movable contact from short circuit and discharge. The protection cover is made of only the insulating material, covers the movable contact, and has elasticity to tightly hold the movable contact.
    Type: Application
    Filed: June 7, 2005
    Publication date: December 15, 2005
    Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Tomoo Yamazaki, Mitsuhiro Mitsushige, Koji Asakawa, Hideto Yamagata, Akifumi Sato
  • Patent number: 6975190
    Abstract: A contactor device of a repulsion-type circuit breaker includes a first movable contactor with a first movable contact to be driven by an open-close mechanism; a fixed contactor; a second movable contactor having second and third movable contacts; a first contact spring for urging the first movable contactor toward the second movable contactor; and a second contact spring for urging the second movable contactor toward the first movable contactor and the fixed contactor. The first movable contactor, fixed contactor, and second movable contactor are arranged such that when an over-current flows, an electromagnetic repulsive force is generated so that the first and second movable contactors are rotated against the first and second contact springs to open between the first movable contact and the second movable contact and between the fixed contact and the third movable contact before the open-close mechanism opens the first movable contact.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: December 13, 2005
    Assignee: Fuji Electric FA Components & Systems Co., Ltd.
    Inventors: Akifumi Sato, Koji Asakawa, Mitsuhiro Mitsushige, Yasuhiro Takahashi, Hideto Yamagata
  • Publication number: 20050184837
    Abstract: A contactor device of a repulsion-type circuit breaker includes a first movable contactor with a first movable contact to be driven by an open-close mechanism; a fixed contactor; a second movable contactor having second and third movable contacts; a first contact spring for urging the first movable contactor toward the second movable contactor; and a second contact spring for urging the second movable contactor toward the first movable contactor and the fixed contactor. The first movable contactor, fixed contactor, and second movable contactor are arranged such that when an over-current flows, an electromagnetic repulsive force is generated so that the first and second movable contactors are rotated against the first and second contact springs to open between the first movable contact and the second movable contact and between the fixed contact and the third movable contact before the open-close mechanism opens the first movable contact.
    Type: Application
    Filed: September 14, 2004
    Publication date: August 25, 2005
    Inventors: Akifumi Sato, Koji Asakawa, Mitsuhiro Mitsushige, Yasuhiro Takahashi, Hideto Yamagata