Patents by Inventor Masashi Arita

Masashi Arita 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: 20240158192
    Abstract: A recording apparatus includes a feed roller, a conveyance roller, a recording unit, a reverse path, and a control unit. The conveyance roller conveys a sheet fed by the feed roller. The recording unit performs recording on the conveyed sheet. The reverse path reverses, in the reverse path, a traveling direction of the sheet on which the recording is performed. The control unit performs control so that a leading edge of a second sheet overlaps a first sheet on which recording is being performed by the recording unit. Recording on the second sheet is to be performed by the recording unit following the recording on the first sheet. The control unit performs control to reverse the traveling direction of the first sheet and the traveling direction of the second sheet in the reverse path while maintaining an overlapping state of the first sheet and the second sheet.
    Type: Application
    Filed: November 10, 2023
    Publication date: May 16, 2024
    Inventors: SHO TAKAHASHI, MASASHI ITO, MOTOYUKI TAGUCHI, KEISUKE ARITA, KENTO TAMARI, RYOTA KOMATSU
  • Patent number: 5104444
    Abstract: An aluminum alloy is prepared from an aluminum alloy powder having a composition of:lubricating componentPb: 3 to 15 Wt %;hardening componentSi: 1 to 12 Wt %;rainforcement componentone or more selected among Cu, Cr, Mg, Mn, NiZn, Fe and: 0.2 to 5.0 Wt %;and remainder of aluminum as principal material or matrix.To the aluminum alloy powder set forth above, powder state Pb in 3 to 12 Wt % is added. With the mixture of the aluminium alloy powder and Pb powder, a billet is formed. For the billet, extrustion process is performed in a extrusion ratio greater than or equal to 40. In the extruded block, Si particle dispersed in the aluminum matrix is in a grain size smaller than or equal to 12 .mu.m. Furthermore, at least of half of added Pb power particle is dispersed to have greater than or equal to 0.74 of circularity coefficient.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: April 14, 1992
    Assignees: Nissan Motor Company, Limited, NDC Co., Ltd.
    Inventors: Masahiko Shioda, Masashi Arita, Katsuji Tanizaki, Koue Ohdawa, Takeshi Sakai
  • Patent number: 4546635
    Abstract: A gear is formed in a gear-forming apparatus including a die block formed with an axial bore and a plurality of teeth radially projecting into the bore and having lead-in portions adjacent one axial end of the bore, and an elongated mandrel axially movable into the bore, by placing at least one blank in position outside the die block and adjacent the axial end of the bore, causing the mandrel to extend through the center hole in the blank; forcing the blank into the bore from the axial end of the bore until the blank is moved past the teeth of the die block so that the blank is caused to form gear teeth on its outer peripheral surface by the teeth of the die block; driving at least one of the die block and the mandrel to move with respect to each other so that the gear resulting from the blank is withdrawn together with the mandrel out of the bore in the die block; and removing the gear from the mandrel outside the die block.
    Type: Grant
    Filed: January 10, 1983
    Date of Patent: October 15, 1985
    Inventors: Masashi Arita, Shigeo Nakazawa
  • Patent number: 4509353
    Abstract: Gears are formed from annular blanks in a gear-forming apparatus including a die block formed with an axial bore and teeth radially projecting into the bore, a cylindrical punch sleeve axially movable toward and away from the bore in the die block, a mandrel movable with the punch sleeve into and out of the bore in the die block, and a backup sleeve axially movable into and out of the bore in the die block in opposite directions to the directions of movement of the sleeve punch and mandrel, wherein gears are formed by preliminarily forcing at least one of the blanks into the bore in the die block until the blank is partially deformed by the teeth of the die block; placing another blank on the preceding blank so that the subsequent blank is received on the preceding blank; causing the mandrel to extend through the respective center holes in the preceding and subsequent blanks; pressing the preceding and subsequent blanks between the end faces of the punch and backup sleeve and forcing the two blanks through th
    Type: Grant
    Filed: February 18, 1983
    Date of Patent: April 9, 1985
    Assignee: Nissan Motor Company, Limited
    Inventors: Masahide Ike, Masashi Arita
  • Patent number: 4337817
    Abstract: A method for joining a member to a diecast article using an apparatus comprising dies, an injection sleeve communicating with a cavity of the dies and a plunger tip slidably arranged in the injection sleeve for filling the cavity of the dies with the molten metal previously poured in the injection sleeve. According to the invention, the plunger tip is formed with an insert aperture for receiving the member to be joined such that a portion of the member extending beyond an upper surface of the plunger tip is exposed in the molten metal when it is poured in the injection sleeve, thereby sufficiently transmitting the heat of the molten metal to the portion of the member to obtain a metallurgical bond at a boundary between the member and the diecast article.
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: July 6, 1982
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Mikiya Komatsu, Masashi Arita, Syunsuke Suzuki