Patents by Inventor Hideo Sakamoto

Hideo Sakamoto 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: 5295298
    Abstract: A semiconductor device of the SOP type packaged on a lead frame and separated individually is fed into a lead-forming position by a holder, and the distal ends of leads arrayed on one side of the semiconductor device are imaged by a camera. The image data from the camera is processed by a recognition unit, which outputs the actual position of the semiconductor device. If the recognized actual position is different from the position to start forming leads, then a controller actuates the holder to eliminate the positional error and to position the semiconductor accurately in the lead-forming position. Based on data corresponding to the type of the semiconductor device, the lead bases of the leads are held by a lead-fixing finger assembly, and the distal end portions of the leads are bent arcuately by a lead-forming finger assembly, thereby forming the leads to a predetermined shape.
    Type: Grant
    Filed: April 27, 1993
    Date of Patent: March 22, 1994
    Assignee: NEC Corporation
    Inventor: Hideo Sakamoto
  • Patent number: 4875002
    Abstract: Semiconductor wafers are tested more efficiently with an improved throughput. Since a plurality of test items are involved but some tests discover more defects than the others, and since neighboring wafers may be believed to have similar characteristics regarding defects, a spot-checking routine and a preferred sequence in which the plurality of tests are conducted may be selected from the data collected and stored from a preliminary testing so that defective samples are more efficiently identified.
    Type: Grant
    Filed: November 24, 1987
    Date of Patent: October 17, 1989
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hideo Sakamoto, Hiroshi Tsugita
  • Patent number: 4804597
    Abstract: An organic electrolyte cell having a negative electrode composed of Li, a positive electrode composed mainly of Bi.sub.2 O.sub.3 and an organic electrolyte. The Bi.sub.2 O.sub.3 is heat-treated above 650.degree. C. to increase the discharge capacity of the cell.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: February 14, 1989
    Assignee: Seiko Electronic Components Ltd.
    Inventors: Kensuke Tahara, Hideo Sakamoto
  • Patent number: 4725182
    Abstract: A printed circuit board, load-unload system which has a printed circuit board processing portion; a magazine stock portion where a plurality of magazines, each of which houses a plurality of printed circuit boards, is arranged on a conveyor route; and a load-unload portion where one of the plurality of printed circuit boards is transferred between one of the plurality of the magazines in the magazine stock portion and the printed circuit board processing portion. The conveyor route of the stock portion includes a bypass route which bypasses the load-unload portion.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: February 16, 1988
    Assignee: Fujitsu Limited
    Inventors: Hideo Sakamoto, Yoshikuni Kawakami
  • Patent number: 4137065
    Abstract: Pesticidal compositions containing, as active ingredient, a compound of the formula ##STR1## wherein R.sub.1 is lower alkyl, lower alkenyl, lower alkynyl or a radical of the formula ##STR2## IN WHICH X is lower alkyl, halogen or hydrogen and n is zero or an integer of 1 to 5,R.sub.2 is lower alkyl, lower alkenyl or lower alkynyl,R.sub.3 is a radical of the formula ##STR3## or a radical of the formula ##STR4## and Y is oxygen or sulfur.
    Type: Grant
    Filed: March 31, 1976
    Date of Patent: January 30, 1979
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventors: Takeo Satomi, Naganori Hino, Masachika Hirano, Kunio Mukai, Hideo Sakamoto, Ryo Yoshida
  • Patent number: 3997526
    Abstract: Amidophosphorothiolate compounds, for example N-(O-methyl-S-n-propyldithiolphosphorylacetyl)-tetrahydroquinoline, are provided which have herbicidal activity.
    Type: Grant
    Filed: November 15, 1973
    Date of Patent: December 14, 1976
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takeo Satomi, Naganori Hino, Masachika Hirano, Kunio Mukai, Hideo Sakamoto, Ryo Yoshida