Patents by Inventor Kenichi Hama

Kenichi Hama 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: 7603962
    Abstract: A rotary type CVD film forming apparatus for mass production, wherein a film forming chamber is formed by providing one columnar body having a plurality of housing spaces for housing one plastic container each in one said housing space, a plurality of said film forming chambers is arranged on a rotation support body at equal intervals in a circular state, source gas introduction means serving as an external electrode which introduce a source gas that is converted to plasma inside the plastic containers housed in each of said film forming chambers is provided, and high frequency supply means which supply a high frequency to the external electrode of each of said film forming chambers is provided to form a CVD (chemical vapor growing) film on the internal surfaces of said plastic containers.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: October 20, 2009
    Assignees: Mitsubishi Shoji Plastics Corporation, Youtec Co., Ltd.
    Inventors: Kenichi Hama, Tsuyoshi Kage, Takumi Kobayashi, Takeharu Kawabe
  • Patent number: 7189290
    Abstract: A method and apparatus for cleaning a source gas introduction pipe, which can prevent strong adhesion of contaminant mainly containing carbon powder on an outer surface of the source gas introduction pipe to easily remove the contaminant in a short period of time. While compressed air is sprayed toward the contaminant, the contaminant removed by the spray of the compressed air is exhausted outside a system of a deposition chamber by suction and exhausting device so that the contaminant is not transferred to sides of the deposition chamber and a plastic container in which a CVD film is formed, in a process for extracting the source gas introduction pipe from the plastic container after the CVD film is formed on an inner surface of the plastic container.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: March 13, 2007
    Assignees: Mitsubishi Shoji Plastics Corporation, Youtec Co., Ltd., Kirin Brewery Company, Limited
    Inventors: Kenichi Hama, Tsuyoshi Kage, Takumi Kobayashi, Takeharu Kawabe
  • Patent number: 7029752
    Abstract: A plastic container for liquid medicine, which, concerning the effective components of liquid medicine, is capable of prevention of deterioration in quality due to mixing of oxygen and water vapor, prevention of variation in concentration due to water volatilization and moisture absorption, etc. A plastic container for liquid medicine, which is a plastic container internally coated with DLC (diamond-like carbon) film wherein water vapor permeability is 0–0.006 g/container/day and oxygen permeability is 0–0.011 ml/container/day, such properties being obtained by optimizing the three conditions, composition, density and film thickness of the DLC film.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: April 18, 2006
    Assignee: Mitsubishi Shoji Plastics Corporation
    Inventors: Kenichi Hama, Tsuyoshi Kage
  • Publication number: 20050266191
    Abstract: A PET container for foods and drinks having a DLC coating film formed on the inner surface thereof, characterized in that the PET container for foods and drinks is produced by the use of a molding material comprising a mixture of a recycled resin which is originated from a used PET container for foods and drinks and has not subjected to a treatment for adjusting its intrinsic viscosity with a fresh PET resin. The above PET container for foods and drinks can provide satisfactory barrier properties against a pollutant substance being present in a resin.
    Type: Application
    Filed: July 27, 2005
    Publication date: December 1, 2005
    Inventors: Kenichi Hama, Tsuyoshi Kage
  • Publication number: 20050229851
    Abstract: The restriction that the outer electrode of a conventional CVD film forming apparatus has to have a hollow structure including a hollow which is for accommodating a container and has a shape generally similar to the outer shape of the container is eliminated. A plasma CVD film forming apparatus is characterized in that a container outside gas is supplied into the space defined between the inner wall of an outer electrode and the outer surface of a container spaced from the inner wall, the plasma thereby produced from the container outside gas in forming a film by CVD serves as a conductor and transmits high-frequency to the outer wall of the container, a state is brought about in which the inner wall of the outer electrode is equivalently in contact with the outer surface of the plastic container, and a uniform self-bias voltage is applied to the inner wall of the container.
    Type: Application
    Filed: April 9, 2003
    Publication date: October 20, 2005
    Inventors: Kenichi Hama, Tsuyoshi Kage, Keishu Takemoto, Takumi Kobayashi
  • Publication number: 20050227019
    Abstract: An object of the present invention is to provide a method and apparatus for cleaning a source gas introduction pipe, which can prevent strong adhesion of contaminant mainly containing carbon powder on an outer surface of the source gas introduction pipe to easily remove the contaminant in a short period of time. The invention is characterized in that, while compressed air is sprayed toward the contaminant, the contaminant removed by the spray of the compressed air is exhausted outside a system of a deposition chamber by suction and exhausting means so that the contaminant is not transferred to sides of the deposition chamber and a plastic container in which a CVD film is formed, in a process for extracting the source gas introduction pipe from the plastic container after the CVD film is formed on an inner surface of the plastic container.
    Type: Application
    Filed: May 21, 2003
    Publication date: October 13, 2005
    Applicants: Mitsubishi Shoji Plastics Corporation, YOUTEC CO., LTD., KIRIN BREWERY CO., LTD
    Inventors: Kenichi Hama, Tsuyoshi Kage, Takumi Kobayashi, Takeharu Kawabe
  • Patent number: 6924001
    Abstract: A production device for a DLC film-coated plastic container and a production method therefor, capable of forming DLC (diamond-like carbon) films simultaneously on the inner surfaces of a plurality of plastic containers, and reducing variations in film thickness. A production device for DLC film-coated plastic containers, for forming a plurality DLC films simultaneously, characterized by comprising a columnar external electrode (3) having housing spaces in which a plurality of plastic containers (7a-7d) can be disposed in parallel and independently, internal electrodes (9a-9d) respectively disposed in the housed containers (7a-7d), a matching box (14) connected to the external electrode (3) and impedance-matching a high-frequency load, and a high-frequency power supply (15) connected to the matching box.
    Type: Grant
    Filed: December 25, 2000
    Date of Patent: August 2, 2005
    Assignees: Mitsubishi Shoji Plastics Corporation, Youtec Co., Ltd.
    Inventors: Kenichi Hama, Tsuyoshi Kage, Takumi Kobayashi, Tomoyuki Araki
  • Publication number: 20050155553
    Abstract: A rotary type CVD film forming apparatus for mass production, wherein a film forming chamber is formed by providing one columnar body having a plurality of housing spaces for housing one plastic container each in one said housing space, a plurality of said film forming chambers is arranged on a rotation support body at equal intervals in a circular state, source gas introduction means serving as an external electrode which introduce a source gas that is converted to plasma inside the plastic containers housed in each of said film forming chambers is provided, and high frequency supply means which supply a high frequency to the external electrode of each of said film forming chambers is provided to form a CVD (chemical vapor growing) film on the internal surfaces of said plastic containers.
    Type: Application
    Filed: June 19, 2003
    Publication date: July 21, 2005
    Applicant: Mitsubishi Shoji Plastics
    Inventors: Kenichi Hama, Tsuyoshi Kage, Takumi Kobayashi, Takeharu Kawabe
  • Publication number: 20040146667
    Abstract: The present invention provides a manufacturing apparatus, a method of manufacturing a DLC film coated container and a DLC film coated container which make it possible to form a high-quality DLC film with good productivity on the outer wall surface or the inner wall surface of a container by a film forming mechanism obtained by effectively combining a high-frequency capacitive coupling type discharge system and a microwave discharge system which is different from the film forming mechanism of each method.
    Type: Application
    Filed: November 24, 2003
    Publication date: July 29, 2004
    Inventors: Kenichi Hama, Tsuyoshi Kage, Takumi Kobayashi
  • Publication number: 20040146666
    Abstract: The present invention provides a moisture and gas barrier plastic container with partition plates. In addition, this invention provides a manufacturing apparatus and a method of manufacturing for the container too. The manufacturing apparatus (100) of the present invention is an apparatus which forms a DLC film on inner wall surfaces (3) having an inside/outside relationship with respect to outer wall surfaces (2) of the plastic container equipped with partition plates (1), and partition plate wall surfaces (5) formed by the partition plates by a plasma CVD method.
    Type: Application
    Filed: November 24, 2003
    Publication date: July 29, 2004
    Inventors: Kenichi Hama, Tsuyoshi Kage, Takumi Kobayashi
  • Publication number: 20040099214
    Abstract: A production device for a DLC film-coated plastic container and a production method therefor, capable of forming DLC (diamond-like carbon) films simultaneously on the inner surfaces of a plurality of plastic containers, and reducing variations in film thickness. A production device for DLC film-coated plastic containers, for forming a plurality DLC films simultaneously, characterized by comprising a columnar external electrode (3) having housing spaces in which a plurality of plastic containers (7a-7d) can be disposed in parallel and independently, internal electrodes (9a-9d) respectively disposed in the housed containers (7a-7d), a matching box (14) connected to the external electrode (3) and impedance-matching a high-frequency load, and a high-frequency power supply (15) connected to the matching box.
    Type: Application
    Filed: May 30, 2003
    Publication date: May 27, 2004
    Inventors: Kenichi Hama, Tsuyoshi Kage, Takumi Kobayashi, Tomoyuki Araki
  • Publication number: 20040050744
    Abstract: A plastic container for liquid medicine, which, concerning the effective components of liquid medicine, is capable of prevention of deterioration in quality due to mixing of oxygen and water vapor, prevention of variation in concentration due to water volatilization and moisture absorption, etc. A plastic container for liquid medicine, which is a plastic container internally coated with DLC (diamond-like carbon) film wherein water vapor permeability is 0-0.006 g/container/day and oxygen permeability is 0-0.011 ml/container/day, such properties being obtained by optimizing the three conditions, composition, density and film thickness of the DLC film.
    Type: Application
    Filed: March 5, 2003
    Publication date: March 18, 2004
    Inventors: Kenichi Hama, Tsuyoshi Kage
  • Publication number: 20030124229
    Abstract: A plastic container for a dry solid food, characterized in that it has a DLC (Diamond Like Carbon) film formed on the inner surface thereof, and has a steam permeability of 0 to 0.006 g/container/day and a steam permeability of 0 to 0.011 ml/container/day. The above gas permeability can be achieved by controlling the composition, density and film thickness of the DLC film. The plastic container can be suitably used for a dry and powdery food which has a smell, is susceptible to deterioration of quality by oxygen or is prone to agglomeration between fine particles by moisture and a dry and solid food which is markedly susceptible to deterioration of quality by moisture.
    Type: Application
    Filed: August 20, 2002
    Publication date: July 3, 2003
    Inventors: Kenichi Hama, Tsuyoshi Kage
  • Publication number: 20030087030
    Abstract: A PET container for foods and drinks having a DLC coating film formed on the inner surface thereof, characterized in that the PET container for foods and drinks is produced by the use of a molding material comprising a mixture of a recycled resin which is originated from a used PET container for foods and drinks and has not subjected to a treatment for adjusting its intrinsic viscosity with a fresh PET resin. The above PET container for foods and drinks can provide satisfactory barrier properties against a pollutant substance being present in a resin.
    Type: Application
    Filed: June 6, 2002
    Publication date: May 8, 2003
    Inventors: Kenichi Hama, Tsuyoshi Kage