Patents by Inventor Tetsuo Doi

Tetsuo Doi 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: 6299789
    Abstract: The invention provides a finish composition for synthetic filament, which does not generate fume and tar at high speed and high temperature, imparts superior lubricity at high temperature, superior antistaticity and yarn winding performance, and has satisfactory biodegradability. The finish composition for synthetic fiber of the invention is characterized by containing one or more of polyether polyester compounds having a molecular weight of 1,000 to 20,000 and represented by the formula: X—(A—B)n—A′—Y. In the formula, each of X and Y is independently hydrogen, or a residue of C1-8 linear or branched saturated alcohol or C1-18 fatty acid; each of A and A′ is a residue of ethylene oxide/propylene oxide block or random copolymer containing ethylene oxide and propylene oxide from 9:1 to 1:9 mol ratio; B is an aliphatic dibasic acid residue represented as OOC(CH2)mCOO; m is an integer from 1 to 4; and n is an integer from 1 to 3.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: October 9, 2001
    Assignee: Matsumoto Yushi-Seiyaku Co., Ltd.
    Inventors: Shinichi Tatemoto, Tetsuo Doi, Yasuhiko Yada
  • Patent number: 5472623
    Abstract: A finish for polyamide yarn comprising 0.2 to 10 weight percent of an amide of polyamine and C.sub.12 -C.sub.50 aliphatic dibasic acid, or an alkali metal salt of the said amide, functioning to prevent the oligomer in polyamide yarn from being extracted out on the polyamide yarn surface during storage so as to prevent fluffs and yarn breakage due to scum generation in down-stream process.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: December 5, 1995
    Assignee: Matsumoto Yushi-Seiyaku Co., Ltd.
    Inventors: Tetsuo Doi, Toshimoto Furuichi, Takeshi Munekiyo
  • Patent number: 4955061
    Abstract: An apparatus for compressed encoding or decoding of a binary image signal and outputting the same wherein both the encoder and the decoder employ counters which are caused to run at a faster than normal rate when certain predetermined conditions relative to the processed data are detected.
    Type: Grant
    Filed: December 6, 1988
    Date of Patent: September 4, 1990
    Assignee: Sony Corporation
    Inventors: Tetsuo Doi, Takeshi Funabashi
  • Patent number: 4792918
    Abstract: Not any special display is required to provide a monitor displaying of I/O data and timer/counter data during operation of programmable controller. Instead, the display of program console will be utilized to display instruction codes and addresses or error messages in characters. Multiple number of sets, in which the numbers of either I/O data or timer/counter data which optionally specified with numbers, are displayed simultaneously on the character display of the program console.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: December 20, 1988
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Kiyoto Hirase, Tetsuo Doi
  • Patent number: 4608628
    Abstract: Progressing conditions of sequence control are taken as patterns of input/output data, and a plurality of status patterns are set separately from user programs. The status patterns are expressed by a ternary of ON, OFF and EITHER ON or OFF with respect to all the input/output data. When the status pattern at the time of actual control coincides with the set status pattern, the discrimination number of the pattern is displayed.
    Type: Grant
    Filed: June 21, 1983
    Date of Patent: August 26, 1986
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Yashitane Saito, Tetsuo Doi, Kiyoto Hirase
  • Patent number: 4216477
    Abstract: A nozzle head of an ink-jet printing apparatus according to the present invention comprises an ink reservoir for storing the ink supplied from an ink tank, a pump chamber provided between said ink reservoir and a nozzle for injecting ink particles, and a fluid diode provided between said ink reservoir and said pump chamber, which are all formed in a same substrate, wherein said pump chamber is caused to change its volume responsive to electric signals so that the ink stored therein is injected from said nozzle, and the ink is prevented from reversely flowing from said pump chamber to said ink reservoir when the volume of the pump chamber is changed, thereby to improve the frequency response of ink particles injected from the nozzle.
    Type: Grant
    Filed: May 2, 1979
    Date of Patent: August 5, 1980
    Assignee: Hitachi, Ltd.
    Inventors: Yasumasa Matsuda, Satoshi Shimada, Kanji Kawakami, Motohisa Nishihara, Taisaku Kohzuma, Syoji Sagae, Tetsuo Doi, Takahiro Yamada
  • Patent number: 4074280
    Abstract: A thermal recording apparatus for recording an information signal on the heat-sensitive recording medium in a form of visible information comprises a plurality of heat-generating resistance elements, a drive circuit for supplying selectively drive current to said heat-generating resistance elements in response to the information signal, a recording medium disposed in contact with the plurality of heat-generating resistance elements and adapted to change color upon sensing heat, means for driving the plurality of heat-generating resistance elements and the recording medium relative to each other, and a switching circuit means for inverting the direction of the drive current applied to the heat-generating resistance elements in a predetermined manner.
    Type: Grant
    Filed: November 10, 1976
    Date of Patent: February 14, 1978
    Assignee: Hitachi, Ltd.
    Inventors: Yasuyuki Kojima, Kiyohiko Tanno, Tetsuo Doi, Kunio Ono
  • Patent number: 4060813
    Abstract: In an apparatus of the type wherein ink under pressure is applied to a nozzle which is vibrated so that the ink emitted from the nozzle thereafter breaks up into ink drops which are charged in a charging tunnel in response to a video signal, means are provided, in accordance with this invention, for compensating the amount of charge on each ink drop or the strength of the deflecting field action on the ink drop, on the basis of information from a detecting means which detects the amount of deflection of one or more calibrating drops periodically so that the amount of deflection of the drop of writing fluid for a given charge may be held to a predetermined value.
    Type: Grant
    Filed: March 17, 1976
    Date of Patent: November 29, 1977
    Assignee: Hitachi, Ltd.
    Inventors: Takahiro Yamada, Tetsuo Doi
  • Patent number: 4050077
    Abstract: Liquid droplets of large diameter and small diameter are alternately emitted from a jet nozzle and are deflected in accordance with control information so that the liquid droplets of large diameter and/or the liquid droplets of small diameter can be directed toward a recording sheet as desired. This system is especially effective in controlling ink droplets in an ink jet recorder using ink.
    Type: Grant
    Filed: November 6, 1975
    Date of Patent: September 20, 1977
    Assignee: Hitachi, Ltd.
    Inventors: Takahiro Yamada, Tetsuo Doi
  • Patent number: RE28693
    Abstract: An image transfer recording apparatus in which a recording drum on which an information signal is recorded by electrostatic recording means is provided with a surface layer of electrically insulating resin so that a powdery developer attaching to the electrostatic latent image formed on the surface of the recording drum can be completely transferred onto a recording sheet thereby to obtain a recorded image of good resolution.
    Type: Grant
    Filed: May 9, 1974
    Date of Patent: January 20, 1976
    Assignee: Hiatchi, Ltd.
    Inventors: Tetsuo Doi, Shoji Sagae