Patents by Inventor Yasuhiro Ohta

Yasuhiro Ohta 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).

  • Stacked rubber tire separation-transport apparatus
    Patent number: 5284236
    Abstract: A stacked rubber tire separation-transport apparatus equipped with a low-speed discharge conveyor at the bottom of a rubber tire stack hopper with a discharge end section formed on a downward inclined discharge surface and with high-speed separation rollers in the vicinity of both sides of the discharge end section for contact with at least some of the tires.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: February 8, 1994
    Assignee: Tsubakimoto Chain Co.
    Inventors: Yasuhiro Ohta, Masaru Umemoto, Kenryo Kashiwagi
  • Process for producing asialo GM1
    Patent number: 5275939
    Abstract: The present invention provides a process for preparing asialo G.sub.M1 characterized in that neuraminidase isozyme L is allowed to act on gangliosides to produce asialo G.sub.M1.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: January 4, 1994
    Assignee: Marukin Shoyu Co., Ltd.
    Inventors: Tsunetake Sugimori, Yoji Tsukada, Yasuhiro Ohta
  • Process for preparing neuraminidase
    Patent number: 5116752
    Abstract: The present invention provides a process for preparing neuraminidase comprising incubating a mutant of the genus Arthrobacter capable of producing neuraminidase in the absence of any inducing substance, and recovering neuraminidase from the resulting culture.
    Type: Grant
    Filed: January 15, 1991
    Date of Patent: May 26, 1992
    Assignee: Marukin Shoyu Co., Ltd.
    Inventors: Tsunetake Sugimori, Yoji Tsukada, Yasuhiro Ohta
  • Process for producing N-acylneuraminate aldolase
    Patent number: 4699883
    Abstract: This invention provides a process for producing N-acylneuraminate aldolase comprising incubating a mutant of the genus Escherichia capable of producing N-acylneuraminate aldolase even in the absence of any inducing substance, and collecting N-acylneuraminate aldolase from the resulting culture.
    Type: Grant
    Filed: July 23, 1985
    Date of Patent: October 13, 1987
    Assignee: Marukin Shoyu Co., Ltd.
    Inventors: Tsunetake Sugimori, Yoji Tsukada, Yoshihiro Uchida, Yasuhiro Ohta
  • Thin film for recording data
    Patent number: 4668573
    Abstract: A thin film for recording data which is formed on a substrate directly or via a protection layer, and which develops change in the arrangement of atoms upon irradiation with a recording beam, wherein an average composition in the direction of film thickness is represented by the general formula,A.sub.X B.sub.Y C.sub.Z D.sub..alpha. E.sub..beta.wherein X, Y, Z, .alpha. and .beta. are values that lie over the ranges of 0.ltoreq.X<30, 0.ltoreq.Y.ltoreq.40, 0.ltoreq.Z.ltoreq.70, 15.ltoreq.Y+Z.ltoreq.70, 10.ltoreq..alpha..ltoreq.65, 20.ltoreq..beta..ltoreq.70, E denotes at least one element between Se and S, D denotes at least one element among As, Sb, Si and Ge, C denotes at least one element among Bi, Sn and Pb, B denotes at least one element among Cu, Ag, Au, Sc, Y, Ti, Zr, V, Nb, Cr, Mo, Mn, Fe, Ru, Co, Rh, Ni and Pd, and A denotes an element or elements other than those elements denoted by E, D, C and B.
    Type: Grant
    Filed: January 16, 1986
    Date of Patent: May 26, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Motoyasu Terao, Tetsuya Nishida, Yasuhiro Ohta, Shinkichi Horigome, Yasushi Miyauchi