Patents by Inventor Masakatsu Hayashi

Masakatsu Hayashi 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: 7379788
    Abstract: A manufactured article treatment processing method and system includes reading out from a manufactured article being subjected to treatment information of component parts of the article and specific properties of the component parts, extraction of the component parts to be separated on the basis of predetermined specific properties serving as information for detachment and specific properties of the component parts, and treatment of the component parts to be separated and other components parts through different processes, respectively.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: May 27, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Tatsuya Suzuki, Toshijiro Ohashi, Yuzo Hiroshige, Yuji Ochiai, Takashi Kitamura, Takahiro Tachi, Masakatsu Hayashi
  • Publication number: 20080071412
    Abstract: A manufactured article treatment processing method and system includes reading out from a manufactured article being subjected to treatment information of component parts of the article and specific properties of the component parts, extraction of the component parts to be separated on the basis of predetermined specific properties serving as information for detachment and specific properties of the component parts, and treatment of the component parts to be separated and other components parts through different processes, respectively.
    Type: Application
    Filed: October 31, 2007
    Publication date: March 20, 2008
    Inventors: Tatsuya SUZUKI, Toshijiro OHASHI, Yuzo HIROSHIGE, Yugi OCHIAI, Takashi KITAMURA, Takahiro TACHI, Masakatsu HAYASHI
  • Patent number: 7257336
    Abstract: In case of a developing density correction based on a test image (patch image) density, normally, the developing density is carried out in a short period of time by correction (? correction) of a developing bias and a grid voltage (S11). When a correction amount of the ? correction exceeds an ordinary range, the ? correction (S11) and adjustment of toner concentration (magnetic permeability reference value) (S5) are carried out in combination. Furthermore, when the toner concentration is changed, the setting of a correction reference of the ? correction (? correction TBL) and correction timing of the ? correction are accordingly changed (S6, S7). Therefore, in the developing density correction based on the test image density in the developing device using binary developer, it is possible to carry out the developing density correction, which is carried out in a short time, and whose correction width is wide, while maintaining the accuracy of a developing density adjustment.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: August 14, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masayasu Narimatsu, Masakatsu Hayashi, Hiroshi Kawamoto, Makoto Uehara, Jitsuo Masuda
  • Publication number: 20050152708
    Abstract: In case of a developing density correction based on a test image (patch image) density, normally, the developing density is carried out in a short period of time by correction (? correction) of a developing bias and a grid voltage (S11). When a correction amount of the ? correction exceeds an ordinary range, the ? correction (S11) and adjustment of toner concentration (magnetic permeability reference value) (S5) are carried out in combination. Furthermore, when the toner concentration is changed, the setting of a correction reference of the ? correction (? correction TBL) and correction timing of the ? correction are accordingly changed (S6, S7). Therefore, in the developing density correction based on the test image density in the developing device using binary developer, it is possible to carry out the developing density correction, which is carried out in a short time, and whose correction width is wide, while maintaining the accuracy of a developing density adjustment.
    Type: Application
    Filed: January 13, 2005
    Publication date: July 14, 2005
    Inventors: Masayasu Narimatsu, Masakatsu Hayashi, Hiroshi Kawamoto, Makoto Uehara, Jitsuo Masuda
  • Patent number: 6832736
    Abstract: In a collecting method and a collecting apparatus for collecting foaming gas generated from foaming heat insulator material, as well as in a processing process and apparatus of disposals, disposals 1 including the foaming heat insulator material 5 are charged into a first and a second crushing machines 3 and 17 for separating the foaming gas contained in the foaming heat insulator material 5 thereof, and the separated foaming gas is collected by a collector 29, wherein measurement is made on the concentration of flammable gas separated, so as to control the charging of the disposals 1 and the foaming heat insulator material 5 into the first and second crushing machines 3 and 17, depending upon that concentration measured, thereby collecting the foaming gas with high efficiency, while controlling the concentration of the flammable gas, appropriately and with ease, and an charge amount thereof to be charged, appropriately, depending upon the concentration of that flammable gas contained therein.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: December 21, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Tetsurou Miyamoto, Kanji Fujimori, Eiji Satou, Masakatsu Hayashi, Chihiro Fukumoto
  • Patent number: 6588597
    Abstract: A treating system for selecting and recovering reusable materials from used composite plastics is constituted by a crushing process, a cleaning and grading process and a plastics separation process. The treating system for the composite plastics is constituted by combining the cleaning and grading process in which a mechanical impact force and a friction force are applied to the plastic crushed pieces so as to clean the plastics and form the gain size of the plastics, and the plastics separation process with using a hydrocyclone. Accordingly, a selecting accuracy of the selected and recovered plastics is significantly improved and the plastics are separated to high-purity plastics, whereby it is possible to utilize the recovered plastics as recycled materials.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: July 8, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Nobuaki Arakane, Masakatsu Hayashi, Yoshiyuki Takamura, Tsutomu Hasegawa
  • Patent number: 6568612
    Abstract: A waste disposal apparatus comprising a crushing means for crushing waste including a circuit board into fragments, and a circuit board sorting means for sorting fragments of the circuit board from the fragments of the waste crushed by the crushing means through eddy current sorting or gravity concentration so as overcome a difficulty in separation between nonferrous metals. With this arrangement, lead contained in the circuit boards can be sorted and separated without being diffused, and further, the volume of fragments of the circuit boards adapted to be mingled into fragments of other waste such as nonferrous metals and plastics can be decreased. Thus, even though waste including circuit board is directly crushed by the crushing means, thereby it is possible to enhance the quality of recovered valuables.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: May 27, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Toshiyuki Aoki, Masakatsu Hayashi, Tsutomu Hasegawa
  • Publication number: 20020153285
    Abstract: A treating system for selecting and recovering reusable materials from used composite plastics is constituted by a crushing process, a cleaning and grading process and a plastics separation process. The treating system for the composite plastics is constituted by combining the cleaning and grading process in which a mechanical impact force and a friction force are applied to the plastic crushed pieces so as to clean the plastics and form the gain size of the plastics, and the plastics separation process with using a hydrocyclone. Accordingly, a selecting accuracy of the selected and recovered plastics is significantly improved and the plastics are separated to high-purity plastics, whereby it is possible to utilize the recovered plastics as recycled materials.
    Type: Application
    Filed: December 1, 1999
    Publication date: October 24, 2002
    Inventors: NOBUAKI ARAKANE, MASAKATSU HAYASHI, YOSHIYUKI TAKAMURA, TSUTOMU HASEGAWA
  • Patent number: 6305548
    Abstract: A discarded industrial product recycling system capable of acquiring pertinent data required for processings of discarded industrial products such as discarders, reception dates, persons responsible for disposal, disposal dates and so forth for selecting proper disposal for each of the discarded industrial products while automatizing the article data acquisition to a possible maximum for enhancing the enhance disposal rate. An electronic tag (radio-frequency identifier tag) is attached to each of discarded industrial products to allow data required for the processing to be written and read by readers/writers. At a time point and a place where a discarded industrial product is received, basic data required for the processing of that article is written in the electronic tag. Pertinent processing route for each of the manufactured articles is decided by reading the data from the electronic tag while writing additional data in the tag as occasion requires.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: October 23, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Eiji Sato, Masakatsu Hayashi, Takeo Takagi, Toshiyuki Aoki, Yoshiyuki Takamura, Tsutomu Hasegawa, Shigeki Kunii
  • Publication number: 20010013558
    Abstract: In a collecting method and a collecting apparatus for collecting foaming gas generated from foaming heat insulator material, as well as in a processing process and apparatus of disposals, disposals 1 including the foaming heat insulator material 5 are charged into a first and a second crushing machines 3 and 17 for separating the foaming gas contained in the foaming heat insulator material 5 thereof, and the separated foaming gas is collected by a collector 29, wherein measurement is made on the concentration of flammable gas separated, so as to control the charging of the disposals 1 and the foaming heat insulator material 5 into the first and second crushing machines 3 and 17, depending upon that concentration measured, thereby collecting the foaming gas with high efficiency, while controlling the concentration of the flammable gas, appropriately and with ease, and an charge amount thereof to be charged, appropriately, depending upon the concentration of that flammable gas contained therein.
    Type: Application
    Filed: February 8, 2001
    Publication date: August 16, 2001
    Inventors: Tetsurou Miyamoto, Kanji Fujimori, Eiji Satou, Masakatsu Hayashi, Chihiro Fukumoto
  • Patent number: 6226617
    Abstract: A treatment processing system for determining proper and appropriate treatment methods and procedures in accordance with states of discarded articles and outputting the determined procedures. Treatment methods are decided which are desirable for manufactured articles for carrying out corresponding treatments of the manufactured articles. The treatment processing system includes a unit for reading out information affixed to the discarded articles, a unit for storing databases for required information, a treatment procedure decision unit, a treatment procedure altering unit, and a detector for detecting whether or not treatment is being executed in conformance with the relevant treatment procedure.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: May 1, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Tatsuya Suzuki, Toshijiro Ohashi, Yuzo Hiroshige, Yuji Ochiai, Takashi Kitamura, Takahiro Tachi, Masakatsu Hayashi
  • Patent number: 6190812
    Abstract: The present invention provides a single-layer type electrophotosensitive material comprising a conductive substrate and a photosensitive layer formed on the conductive substrate, wherein the photosensitive layer contains a phthalocyanine compound as an electric charge generating material, a hole transferring material and an electron transferring material in a binder resin, and that a difference in absolute value between a plus polarity sensitivity and a minus polarity sensitivity measured under the conditions of an exposure wavelength of 780 nm and an exposure energy of 1.0 &mgr;J/cm2 is not more than 500 V, and a reversal development type digital image forming apparatus using the electrophotosensitive material, which does not include a charge neutralizing step.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: February 20, 2001
    Assignee: Kyocera Mita Corporation
    Inventors: Yukikatsu Imanaka, Hiroaki Iwasaki, Yuji Tanaka, Masakatsu Hayashi
  • Patent number: 5769333
    Abstract: A system including a method and an apparatus is disclosed for effectively separating a foamed heat-insulating material, such as insulated wall sections from used refrigeration equipment, into a foaming gas and a heat-insulating resin without any alteration and recovering them. A peeling portion for peeling a foamed heat-insulating material from a composite material containing the foamed heat-insulating material is included in a crusher provided with a high speed rotor having a plurality of hammers and a casing surrounding the rotor. A sorting portion is provided for sorting the foamed heat-insulating material with a tilting type wind force sorter having a limited tilting angle and a limited height of a wind tunnel. A pulverizing portion is provided for pulverizing the sorted foamed heat-insulating material and for separating a foaming gas therefrom. A condensing portion is provided for cooling and liquefying the separated foaming gas.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: June 23, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Nobuo Kimura, Masakatsu Hayashi, Chikao Oda, Kazuo Sakaguchi, Yoshiyuki Takamura, Kichiji Uchiyama, Kazuo Makino, Noritaka Terayama
  • Patent number: 5740918
    Abstract: An apparatus for sorting plastic pieces by specific gravity sorting includes a vessel containing water and having an inlet for plastic pieces to be sorted, a device for introducing plastic pieces to be sorted into the vessel through the inlet, a device for removing air bubbles from the plastic pieces within the water, and a device for moving the plastic pieces within the water in the vessel to allow the various plastic pieces to be sorted within the water due to the different specific gravities of the plastic pieces. A method of sorting plastic pieces by specific gravity sorting with the apparatus is also described.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: April 21, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Masakatsu Hayashi, Yoshiyuki Takamura, Tsutomu Hasegawa, Hideharu Mori, Tatsuji Katoh
  • Patent number: 5678773
    Abstract: To provide a high-efficient apparatus for minimizing the volume of dust to be buried in the ground or processed in incineration process by crushing a waste article such as wasted electric appliances, separating an individual material component, and discriminating and extracting valuable resources. Motor and other waste articles separated at a metallic lump separation station are cooled down by a cooling apparatus, and put into a soft crushing apparatus where articles are crushed at low temperature. After the residual articles, including housing and so on are crushed primarily by the coarse crushing apparatus, they are forwarded to the soft crushing apparatus.
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: October 21, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Yoshiyuki Takamura, Masakatsu Hayashi, Tsutomu Hasegawa
  • Patent number: 5641128
    Abstract: A system including a method and an apparatus is disclosed for effectively separating a foamed heat-insulating material, such as insulated wall sections from used refrigeration equipment, into a foaming gas and a heat-insulating resin without any alteration and recovering them. A peeling portion for peeling a foamed heat-insulating material from a composite material containing the foamed heat-insulating material is included in a crusher provided with a high speed rotor having a plurality of hammers and a casing surrounding the rotor. A sorting portion is provided for sorting the foamed heat-insulating material with a tilting type wind force sorter having a limited tilting angle and a limited height of a wind tunnel. A pulverizing portion is provided for pulverizing the sorted foamed heat-insulating material and for separating a foaming gas therefrom. A condensing portion is provided for cooling and liquefying the separated foaming gas.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: June 24, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Nobuo Kimura, Masakatsu Hayashi, Chikao Oda, Kazuo Sakaguchi, Yoshiyuki Takamura, Kichiji Uchiyama, Kazuo Makino, Noritaka Terayama
  • Patent number: 5611493
    Abstract: A waste disposal system includes a stock yard for storing waste articles, a pre-treatment apparatus for separating a metal bulk from each waste article fed from the stock yard, a cryogenic crushing apparatus for crushing the separated metal bulk, and a crushing apparatus for crushing the portion of the waste article other than the metal bulk. The system further includes a light-weight article separating apparatus for separating the crushed waste from said crushing apparatus into foamed material and other wastes, and a foaming agent collecting apparatus which separates the foamed material into solid plastics and gaseous foaming agent and then cools and liquefies the gaseous foaming agent.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: March 18, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Masakatsu Hayashi, Yoshiyuki Takamura, Tsutomu Hasegawa, Hideharu Mori, Tatsuji Katoh
  • Patent number: 5431347
    Abstract: A waste disposal system includes a stock yard for storing waste articles, a pre-treatment apparatus for separating a metal bulk from each waste article fed from the stock yard, a cryogenic crushing apparatus for crushing the separated metal bulk, and a crushing apparatus for crushing the portion of the waste article other than the metal bulk. The system further includes a light-weight article separating apparatus for separating the crushed waste from said crushing apparatus into foamed material and other wastes, and a foaming agent collecting apparatus which separates the foamed material into solid plastics and gaseous foaming agent and then cools and liquefies the gaseous foaming agent.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: July 11, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Masakatsu Hayashi, Yoshiyuki Takamura, Tsutomu Hasegawa, Hideharu Mori, Tatsuji Katoh
  • Patent number: RE39516
    Abstract: The present invention provides a single-layer type electrophotosensitive material comprising a conductive substrate and a photosensitive layer formed on the conductive substrate, wherein the photosensitive layer contains a phthalocyanine compound as an electric charge generating material, a hole transferring material and an electron transferring material in a binder resin, and that a difference in absolute value between a plus polarity sensitivity and a minus polarity sensitivity measured under the conditions of an exposure wavelength of 780 nm and an exposure energy of 1.0 ?J/cm2 is not more than 500 V, and a reversal development type digital image forming apparatus using the electrophotosensitive material, which does not include a charge neutralizing step.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: March 13, 2007
    Assignee: Kyocera Mita Corporation
    Inventors: Yukikatsu Imanaka, Hiroaki Iwasaki, Yuji Tanaka, Masakatsu Hayashi
  • Patent number: RE42189
    Abstract: The present invention provides a single-layer type electrophotosensitive material comprising a conductive substrate and a photosensitive layer formed on the conductive substrate, wherein the photosensitive layer contains a phthalocyanine compound as an electric charge generating material, a hole transferring material and an electron transferring material in a binder resin, and that a difference in absolute value between a plus polarity sensitivity and a minus polarity sensitivity measured under the conditions of an exposure wavelength of 780 nm and an exposure energy of 1.0 ?J/cm2 is not more than 500 312 V, and a reversal development type digital image forming apparatus using the electrophotosensitive material, which does not include a charge neutralizing step.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: March 1, 2011
    Assignee: Kyocera Mita Corporation
    Inventors: Yukikatsu Imanaka, Hiroaki Iwasaki, Yuji Tanaka, Masakatsu Hayashi