Patents by Inventor Hiroyoshi Shimizu

Hiroyoshi Shimizu 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).

  • Magnetic separation device and raw water treatment apparatus
    Patent number: 10343938
    Abstract: A magnetic separation device includes magnetic separation units in each of which a flow direction of raw water in a separation vessel is set to the same direction as a rotation direction of a magnetic drum. In the left-side magnetic separation unit, a raw water feeding channel is connected to the left side of the separation vessel, so that the raw water flows from left to right in the separation vessel and the treated water flows out of a discharge channel. The magnetic drum rotates in a counter clockwise direction. In the right-side magnetic separation unit, the raw water feeding channel is connected to the right side of the separation vessel, so that the raw water flows from right to left in the separation vessel and the treated water flows out of the discharge channel. The magnetic drum also rotates in the clockwise direction.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: July 9, 2019
    Assignee: HITACHI, LTD.
    Inventors: Manabu Yamada, Kazutaka Fukumoto, Hiroyoshi Shimizu, Kei Hayashida, Hisashi Isogami
  • MAGNETIC SEPARATION DEVICE AND RAW WATER TREATMENT APPARATUS
    Publication number: 20170320758
    Abstract: A magnetic separation device includes magnetic separation units in each of which a flow direction of raw water in a separation vessel is set to the same direction as a rotation direction of a magnetic drum. In the left-side magnetic separation unit, a raw water feeding channel is connected to the left side of the separation vessel, so that the raw water flows from left to right in the separation vessel and the treated water flows out of a discharge channel. The magnetic drum rotates in a counter clockwise direction. In the right-side magnetic separation unit, the raw water feeding channel is connected to the right side of the separation vessel, so that the raw water flows from right to left in the separation vessel and the treated water flows out of the discharge channel. The magnetic drum also rotates in the clockwise direction.
    Type: Application
    Filed: November 2, 2015
    Publication date: November 9, 2017
    Applicant: HITACHI, LTD.
    Inventors: Manabu YAMADA, Kazutaka FUKUMOTO, Hiroyoshi SHIMIZU, Kei HAYASHIDA, Hisashi ISOGAMI
  • Magnetic shield-forming magnetically soft powder, composition thereof, and process of making
    Patent number: 4923533
    Abstract: A powder comprising flakes of magnetically soft amorphous alloy having an average thickness of 0.01-1 .mu.m and an aspect ratio of 10-10,000 is blended with a binder to form a coating composition from which a magnetic shield is fabricated. The alloy is basically an Fe-B-Si ternary alloy in which iron may be partially replaced by another metal.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: May 8, 1990
    Assignees: TDK Corporation, Tokyo Magnetic Printing Company, Ltd.
    Inventors: Masao Shigeta, Tsutomu Choh, Hiroyoshi Shimizu, Ippo Hirai, Shohei Mimura, Atsushi Makimura, Hiroshi Hosaka