Patents by Inventor Kunio Suzuki

Kunio Suzuki 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: 4806496
    Abstract: Photoelectric conversion devices are manufactured at high yield by repairing the devices during the final steps of the manufacuturing process. Short current paths resulting from the formation process of semiconductor layers can be eliminated by applying a reverse voltage to the layers, which thus are heated and made insulating. After the elimination of the short current paths, the reverse current no longer passes beyond 15 mA on a reverse voltage of 8 V.
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: February 21, 1989
    Assignee: Semiconductor Energy Laboratory Co. Ltd.
    Inventors: Kunio Suzuki, Ippei Kobayashi, Katsuhiko Shibata, Masato Susukida, Mikio Kinka, Takeshi Fukada, Susumu Nagayama, Masayoshi Abe, Shunpei Yamazaki
  • Patent number: 4786607
    Abstract: An improved semiconductor device is disclosed which is free from current leakage due to pin-holes or other gaps. Also an improved method for processsing a semiconductor device is shown. According to the invention, gaps produced in fabricating process of the semiconductor layer are filled with insulator in advance of deposition of electrodes.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: November 22, 1988
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shumpei Yamazaki, Kunio Suzuki, Mikio Kinka, Takeshi Fukada, Masayoshi Abe, Ippei Kobayashi, Katsuhiko Shibata, Masato Susukida, Susumu Nagayama, Kaoru Koyanagi
  • Patent number: 4739106
    Abstract: A process for preparing a 2-carbamoyloxyalkyl-1,4-dihydropyridine derivative represented by the general formula: ##STR1## which comprises: (a) reacting a 3-amino-3-carbamoyloxyalkylacrylic acid derivative represented by the general formula: ##STR2## with a benzylidene compound represented by the general formula: ##STR3## (b) reacting the 3-amino-3-carbamoyloxyalkylacrylic acid derivative of the general formula II with an aldehyde compound represented by the general formula: ##STR4## and a .beta.-keto-ester compound represented by the general formula:R.sup.4 --CO--CH.sub.2 --COOR.sup.2 (V)(c) reacting a 3-carbamoyloxyalkylpropiolic acid derivative represented by the general formula: ##STR5## with the benzylidene compound of the general formula III and ammonia or its salt; or(d) reacting the 3-carbamoyloyalkylpropiolic acid derivative of the general formula VI with the aldehyde compound of the general formula IV, the .beta.-keto-ester compound of the general formula V and ammonia or its salt.
    Type: Grant
    Filed: May 16, 1986
    Date of Patent: April 19, 1988
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Tetsuji Miyano, Kunio Suzuki, Nobuo Harada
  • Patent number: 4735972
    Abstract: A thermoplastic resin composition having deodorizing properties, which is obtained by adding to a thermoplastic resin from 0.5 to 100% by weight of fine powders of ferrous sulfate having a total content of crystal water and free water of not more than 20% by weight or fine powders of aluminum sulfate, potassium aluminum sulfate, sodium aluminum sulfate or zinc sulfate having a total content of crystal water and free water of not more than 5% by weight, and kneading the mixture and/or molding the mixture. The composition can be processed at high temperatures and does not undergo color change with time.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: April 5, 1988
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Akira Shigematsu, Kunio Suzuki
  • Patent number: 4730015
    Abstract: A polyacetal resin composition comprises a polyacetal resin as the matrix, (A) 0.01 to 2.0 percent by weight of a stabilizer selected from a benzotriazole compound, a benzophenone compound and an aromatic benzoate compound and (B) 0.01 to 2.0 percent by weight of a hindered amine compound and is improved in whetherability.
    Type: Grant
    Filed: July 22, 1985
    Date of Patent: March 8, 1988
    Assignee: Polyplastics Co., Ltd.
    Inventors: Yukio Ikenaga, Masami Yamawaki, Kunio Suzuki
  • Patent number: 4727807
    Abstract: In a rotary printing press, an apparatus, for automatically mounting and removing printing plates comprises: a magazine associated with a main body and including a plate take-out unit for positioning a plurality of successive fresh printing plates in order, and a plate storage unit for temporarily storing a plurality of used printing plates; and a mechanical hand adapted for holding a printing plate and supported by a shaft of and an arm of the main body, the mechanical hand being actuated by the shaft and arm for reciprocating between the magazine and a peripheral surface of a plate cylinder.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: March 1, 1988
    Assignee: Tokyo Kikai Seisakusho
    Inventors: Kunio Suzuki, Yukitoshi Takahashi, Nobuaki Hashimoto
  • Patent number: 4725558
    Abstract: An improved semiconductor defects curing method and apparatus are disclosed which is free from current leakage due to pin-holes or other defects. Also an improved method for processing a semiconductor device is shown. According to the invention, the gaps or holes in the semiconductor layer produced in the fabrication process are filled with insulator in advance of deposition of electrodes.
    Type: Grant
    Filed: November 6, 1986
    Date of Patent: February 16, 1988
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kunio Suzuki, Mikio Kinka, Takeshi Fukada, Masayoshi Abe, Ippei Kobayashi, Katsuhiko Shibata, Masato Susukida, Susumu Nagayama, Kaoru Koyanagi
  • Patent number: 4658376
    Abstract: A magnetic bubble file system having a magnetic bubble memory includes magnetic bubble memory devices as memory media for constructing a plurality of pages of information store areas read and written by page. The store area of a selected one of the plurality of pages of the magnetic bubble memory devices is allotted to a write protection information store page for the magnetic bubble memory. The write protection information store page stores write protection information of each page of data store pages of the magnetic bubble memory. The magnetic bubble file system determines whether data can be written in to the data store page, in accordance with the write protection information stored in the write protection information store page.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: April 14, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Kunio Suzuki, Kunihiko Onuma, Koji Masui
  • Patent number: 4627350
    Abstract: A pair of first and second doctor blades are disposed in symmetrical locations one on each side of a location in which a mesh roller is disposed adjacent to a fountain roller.There is switching means for independently displacing the pair of doctor blades between a first position in which the doctor blades are pressed against the mesh roller and a second position in which the doctor blades are spaced from the mesh roller, with or without a safety circuit.
    Type: Grant
    Filed: November 8, 1983
    Date of Patent: December 9, 1986
    Inventors: Masayoshi Sato, Noritake Harada, Kunio Suzuki
  • Patent number: 4579994
    Abstract: A process for preparing lower olefin using a calcium phosphate modified zeolite type catalyst is disclosed which is capable of reducing the decomposition of methanol into CO and CO.sub.2 and increasing the olefin selectivity. In the process, the reaction of methanol and/or dimethyl ether is carried out in the presence of an aluminosilicate zeolite-type catalyst which has a Ca-containing compound and a P-containing compound contained therein in predetermined amounts.
    Type: Grant
    Filed: February 28, 1985
    Date of Patent: April 1, 1986
    Assignee: Itaru Todoriki
    Inventors: Yoshimichi Kiyozumi, Kunio Suzuki, Shigemitsu Shin, Hideo Okado, Kazumi Noguchi
  • Patent number: 4555357
    Abstract: Polyacetal resin composition containing electrically conductive carbon black is improved in respect to stability to heat by incorporating thereinto an amide compound.
    Type: Grant
    Filed: September 12, 1983
    Date of Patent: November 26, 1985
    Assignee: Polyplastics Company, Ltd.
    Inventors: Takuzo Kausga, Yukio Ikenaga, Kunio Suzuki
  • Patent number: 4511708
    Abstract: Polytetramethylene terephthalate is manufactured from terephthalic acid and 1,4-butanediol in two stages, a first stage comprising an esterification reaction employing an esterification catalyst and a second stage comprising a condensation-polymerization reaction. The esterification reaction is carried out in the presence of at least one acid amide compound, preferably selected from urea, a derivative thereof, mono- or poly-carboxylic acid amides having 1 to 9 carbon atoms, polyamides, phosphoric acid amides and sulfonic acid amides, whereby the production of tetrahydrofuran as a by-product is appreciably inhibited and the time required for the esterification reaction is reduced.
    Type: Grant
    Filed: January 31, 1984
    Date of Patent: April 16, 1985
    Assignee: Polyplastics Company, Ltd.
    Inventors: Takuzo Kasuga, Katsuhiko Takahashi, Kunio Suzuki
  • Patent number: 4494139
    Abstract: An automatic assembly system wherein parts supplied from a feeder are held by a holder and are automatically mounted onto predetermined positions of a circuit board; comprising a first image pickup device which images at least a portion of said circuit board, a second image pickup device which images at least a portion of the part held by the holder means, a signal processor which processes an output of said first image pickup device to detect a deviation of said circuit board from a reference position and which also processes an output of said second image pickup device to detect a magnitude of deviation between said part and the predetermined position of said circuit board, and a positioning device which operates under control of said signal processor so as to adjust said predetermined position of said circuit board to a position opposing to said part and also to move said part toward said circuit board.
    Type: Grant
    Filed: March 30, 1982
    Date of Patent: January 15, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Yoshihiro Shima, Seiji Kashioka, Takeshi Uno, Kunio Suzuki
  • Patent number: 4414897
    Abstract: In an inking mechanism in a rotary press a doctor blade is provided to prevent the mixing into the ink of bubbles which cause the scattering of an ink mist upon bursting of the bubbles. The doctor blade can swing along the circumferential surface of eccentric sleeves supporting both ends of a fountain roll. A free end portion of the doctor blade contacts with a position just progressed in the rotative direction on that portion of the circumferential surface of a mesh roll to which ink is transferred from the fountain roll. A scraped ink returning plate is provided close to and along the circumferential surface of the fountain roll providing a streamline flow of the scraped ink without turbulent flow. The free end portion of the doctor blade can be displaced for cleaning and replacement.
    Type: Grant
    Filed: January 18, 1983
    Date of Patent: November 15, 1983
    Assignee: Kabushiki Kaisha Tokyo Kikai Seisakusho
    Inventors: Masayoshi Sato, Kunio Suzuki
  • Patent number: 4410751
    Abstract: A lower alcohol, especially methanol, or dimethyl ether is subjected to pyrolysis conditions in the presence of a specific catalyst to obtain lower olefins. The catalyst is comprised of a smectite, such as a montmorillonite clay, having superimposed aluminosilicate layers and zirconium oxide intercalated between the structural, aluminosilicate layers.
    Type: Grant
    Filed: March 12, 1982
    Date of Patent: October 18, 1983
    Assignee: Director-General of Agency of Industrial Science & Technology
    Inventors: Shigemitsu Shin, Kunio Suzuki, Yoshimichi Kiyozumi, Kiyoshi Ogawa, Haruo Takaya, Kenichiro Bando, Yasuo Takami, Yasuhiko Kohtoku, Hideo Watanabe, Kichinari Kawamura, Yuzi Shimazaki
  • Patent number: 4404378
    Abstract: Novel compounds having vasodilation and hypotensive effects are represented by the formula ##STR1## where R.sup.1 is halogen, nitro, cyano or lower alkoxy; each of R.sup.2 and R.sup.3 is lower alkyl, lower haloalkyl, lower alkoxyalkyl, aralkyloxyalkyl, aryloxyalkyl, lower alkenoxyalkyl, N,N-di-lower alkylaminoalkyl, N-lower alkyl-N-aralkylaminoalkyl, piperidylalkyl, 4-lower alkyl piperazinylalkyl, norpholinoalkyl or 1-pyrrolidinylalkyl; R.sup.4 is lower alkyl; A is lower alkylene; and R.sup.5 is hydrogen, lower alkyl, cycloalkyl of 3 to 7 carbon atoms, or aryl unsubstituted or substituted by one or two substituents selected from halogen, nitro, lower alkyl, lower alkoxy, di-lower alkylamino and cyano.Also disclosed are processes for their preparation.
    Type: Grant
    Filed: April 6, 1982
    Date of Patent: September 13, 1983
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Tetsuji Miyano, Kunio Suzuki, Nobuo Harada
  • Patent number: 4365426
    Abstract: A hair drier having a casing provided at its end with a discharge port through which hot air is discharged, a heating bar provided at the center of the discharge port and extending forwardly from the casing, and a hair setting member provided with a deep insertion hole for receiving the heating bar.
    Type: Grant
    Filed: January 8, 1981
    Date of Patent: December 28, 1982
    Assignee: Hitachi, Ltd.
    Inventors: Kunio Suzuki, Minoru Takahashi
  • Patent number: 4331544
    Abstract: The invention provides a novel highly heat-resistant solid catalyst for the ethanation of hydrogen and carbon monoxide into methane. Different from conventional nickel catalysts, the inventive catalyst comprises a binary active ingredient composed of an alloy of nickel and molybdenum and a molybdenum carbide supported on a porous catalyst carrier. The catalyst is prepared by heating a catalyst intermediate comprising the oxides of nickel and molybdenum supported on the carrier in a gaseous mixture of hydrogen and carbon monoxide at 500.degree.-700.degree. C., preferably, following a step of hydrogen reduction at 400.degree.-900.degree. C. The most preferable catalyst carrier is a mixture or a composite oxide compound composed of magnesium and aluminum oxides. The methanation reaction can be carried out with the inventive catalyst at a much higher temperature, e.g. 650.degree. C.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: May 25, 1982
    Assignee: Director-General of the Agency of Industrial Science and Technology
    Inventors: Haruo Takaya, Tadasuke Hosoya, Kiyoshi Ogawa, Shigemitsu Shin, Michio Araki, Kunio Suzuki, Naoyuki Todo
  • Patent number: 4272686
    Abstract: An improved electric power plant (10) includes a water turbine (30) and a drive wheel (34) contained within a housing (22) for converting hydraulic energy to electrical energy. The housing (22) includes openings (90) and (102) for connecting the power plant (10) to a water line (12) or to a sewer line (18) for operating the turbine (30) in either an undershoot or overshoot condition. A plurality of reversible vanes (94) are removably attached to the perimeter of the water turbine (30) for operating the turbine in either an undershoot or overshoot condition. A bypass line (16) extends from the inlet pipe to the housing (22) to the outlet pipe to provide a means for repairing the power plant (10) without interrupting water or sanitary sewer service. The main electrical generator (70) is energized through a belt (72) driven by its engagement with the drive wheel (34). Ultraviolet ray lights (78) and an ozone generator (80) are included within the housing (22) to eliminate bacteria and to reduce odors.
    Type: Grant
    Filed: March 25, 1980
    Date of Patent: June 9, 1981
    Inventor: Kunio Suzuki
  • Patent number: 4076782
    Abstract: In the process where a shaped product of expanded polystyrene is continuously produced by passing preliminarily expanded beads of polystyrene interposed inside a carrying means comprising a circulating steam-permeable single belt or a set of belts of the same nature through a pressurized steam chamber provided with pressure-sealing means at the inlet and the outlet thereof, thereby closely integrating the beads into a sheet through softening and expansion of the beads by steam heating, then cooling the resulting shaped product, and separating the shaped product from the carrying belt or belts, while withdrawing the shaped product to a successive step and returning the carrying belt or belts to the inlet side of the pressurized steam chamber, at least one of the surfaces of the carrying belt(s) is wetted with water before supplying the preliminarily expanded beads onto the belt(s) on the inlet side of the pressurized steam chamber, and thereafter the preliminarily expanded beads are supplied in excess onto the
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: February 28, 1978
    Assignee: Polymer Processing Research Institute Ltd
    Inventors: Masahide Yazawa, Teruo Kubo, Kunio Suzuki