Patents by Inventor Takeshi Fukuyama

Takeshi Fukuyama 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: 11883875
    Abstract: A forging apparatus and a forged product manufacturing method aim to prevent decrease in the temperature of a forging space and the temperature of a forging material, efficiently maintain the uniformity of the temperatures of upper and lower dies, and improve forging efficiency. In the forging apparatus and the forged product manufacturing method according to the present invention, the upper and lower dies are heated by a heating mechanism in a housing in which a charging port of an integrally formed housing body is closed by a door, the upper and lower dies are moved relatively in a facing direction of the upper and lower dies, the heating mechanism is moved relatively in the facing direction with respect to at least one of the relatively moving upper and lower dies, and whereby the forging material is forged between the upper and lower dies. Furthermore, the forged product manufacturing method is used to manufacture a forged product from the forging material.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: January 30, 2024
    Inventors: Shoichi Takahashi, Takanori Matsui, Etsuo Fujita, Takeshi Fukuyama, Shogo Suzuki
  • Publication number: 20230366054
    Abstract: The present invention provides a heat treatment method and a heat treatment apparatus for an amorphous alloy ribbon, said method and apparatus being capable of uniformly heat treating an amorphous alloy ribbon, while suppressing the occurrence of anisotropy in the magnetic characteristics. A heat treatment method for an amorphous alloy ribbon, said method comprising a step wherein an amorphous alloy ribbon is transferred, while being in contact with a heated projected surface, and the amorphous alloy ribbon is transferred, while having the part that is in contact with the projected surface pressed against the projected surface from a surface which is on the reverse side of the surface that is in contact with the projected surface.
    Type: Application
    Filed: September 22, 2021
    Publication date: November 16, 2023
    Applicant: Proterial, Ltd.
    Inventors: Hirohisa SANO, Takeshi FUKUYAMA
  • Publication number: 20220219225
    Abstract: A forging apparatus and a forged product manufacturing method aim to prevent decrease in the temperature of a forging space and the temperature of a forging material, efficiently maintain the uniformity of the temperatures of upper and lower dies, and improve forging efficiency. In the forging apparatus and the forged product manufacturing method according to the present invention, the upper and lower dies are heated by a heating mechanism in a housing in which a charging port of an integrally formed housing body is closed by a door, the upper and lower dies are moved relatively in a facing direction of the upper and lower dies, the heating mechanism is moved relatively in the facing direction with respect to at least one of the relatively moving upper and lower dies, and whereby the forging material is forged between the upper and lower dies. Furthermore, the forged product manufacturing method is used to manufacture a forged product from the forging material.
    Type: Application
    Filed: April 2, 2020
    Publication date: July 14, 2022
    Applicant: Hitachi Metals, Ltd.
    Inventors: Shoichi Takahashi, Takanori Matsui, Etsuo Fujita, Takeshi Fukuyama, Shogo Suzuki
  • Patent number: 7412137
    Abstract: An optical power monitor capable of being reduced in size even when designed as a multi-channel monitor, and having a reduced light transmission loss is disclosed. The optical power monitor has two optical fibers provided on the light transmission upstream and downstream sides and having cores, the end surfaces which are opposed to each other with the core optical axes offset from each other, and which are fusion-spliced to each other in a fusion splicing portion, a light reflection surface which faces a portion of the upstream-side optical fiber core end surface offset to protrude from the downstream-side optical fiber core end surface in the fusion splicing portion, and which is provided in the downstream-side optical fiber cladding layer, and a photo-diode positioned opposite from the light reflection surface with respect to the downstream-side optical fiber core.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: August 12, 2008
    Assignee: Hitachi Metals, Ltd.
    Inventors: Masaru Suzuki, Masahiro Ao, Takeshi Fukuyama
  • Publication number: 20070230872
    Abstract: An optical power monitor capable of being reduced in size even when designed as a multi-channel monitor, and having a reduced light transmission loss is disclosed. The optical power monitor has two optical fibers provided on the light transmission upstream and downstream sides and having cores, the end surfaces which are opposed to each other with the core optical axes offset from each other, and which are fusion-spliced to each other in a fusion splicing portion, a light reflection surface which faces a portion of the upstream-side optical fiber core end surface offset to protrude from the downstream-side optical fiber core end surface in the fusion splicing portion, and which is provided in the downstream-side optical fiber cladding layer, and a photo-diode positioned opposite from the light reflection surface with respect to the downstream-side optical fiber core.
    Type: Application
    Filed: March 6, 2007
    Publication date: October 4, 2007
    Applicant: HITACHI METALS, LTD
    Inventors: Masaru Suzuki, Masahiro Ao, Takeshi Fukuyama
  • Patent number: 5930763
    Abstract: An order amount of parts can be calculated from an actually used amount of the parts, so that the used parts can be resupplied subsequently. An order amount can also be calculated form a production plan, so that the parts necessary to meet the plan can be delivered.In this technique, an order amount is calculated by the equation "W1.multidot.X1+W2.multidot.X2", where X1 is the order amount calculated in a subsequently resupplying way, X2 is the order amount calculated in a plan correspondence way, W1 is an actual weight, and W2 is a plan weight. The actual weight W1 becomes high and the plan weight W2 becomes low when the subsequently resupplying way is suitable, and vice versa. The actual weight W1 and the plan weight W2 can be calculated from experience or system analysis.
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: July 27, 1999
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kuniya Kaneko, Takeshi Fukuyama, Harumichi Wakiyama
  • Patent number: 5528489
    Abstract: For delivering parts successively received in shipment units by parts deliverer to part use positions, the delivering operation time required for each parts deliverer is uniformalized. A uniformalizing plan is produced, and the delivering operation is continued according to the plan. The delivering operation time is calculated for each shipment unit (first step). The assignment of shipment units to parts deliverers is shifted such as to uniformalize the delivering operation time for each parts deliverer (third step). The shifting operation is continued until uniformalizing is obtained. As a result, uniformalized assignment can be realized.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: June 18, 1996
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takao Asahara, Takeshi Fukuyama, Hirofumi Kunimoto, Katsuhiro Tanaka, Toshikazu Tomimori