Patents by Inventor Kozo Tamura

Kozo Tamura 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).

  • Publication number: 20200254123
    Abstract: A treatment method is capable of degrading or sterilizing harmful substances or microorganisms of which the degradation, detoxification, or the like is not easy for ozone gas alone. A harmful substance treatment method is one that makes ozone gas act on harmful substances, microorganisms, or the like in an environment humidified using a surfactant solution. The harmful substances include anticancer drugs. As a surfactant to be used, a non-ionic surfactant, an anionic surfactant, a cationic surfactant, or an amphoteric surfactant can be used.
    Type: Application
    Filed: October 10, 2018
    Publication date: August 13, 2020
    Applicants: TAMURA TECO CO., LTD., KINKI UNIVERSITY
    Inventors: Kozo TAMURA, Shunji ISHIWATA, Tomomi INOUE, Takeshi KOTAKE
  • Patent number: 10675495
    Abstract: A CT value controller includes a storage means, an input means, and a computing means. The storage means stores a function expressing a relative humidity and a CT value regarding a degradation degree of an anticancer agent, an assumed relative humidity, and a CT setting. The input means inputs a measured relative humidity and a measured ozone concentration at a time of degradation treatment of the anticancer agent. The computing means calculates a corrected CT value increment based on a difference between the measured relative humidity and the assumed relative humidity at every input of the relative humidity and the ozone concentration by using the function. The computing means determines a termination of the degradation treatment of the anticancer agent when an integrated CT value of the corrected CT value increments reaches the CT setting.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: June 9, 2020
    Assignees: TAMURA TECO CO., LTD., KINKI UNIVERSITY
    Inventors: Kozo Tamura, Yoshiyuki Fukuda, Shunji Ishiwata, Atsushi Taga
  • Patent number: 10544262
    Abstract: The present invention provides a polyamide having excellent heat resistance, water resistance, and impact resistance. The present invention relates to a polyamide including: structural units derived from an aromatic dicarboxylic acid; and structural units derived from an aliphatic diamine. This polyamide contains 0.40 to 0.70 mol % in total of hydroxyl groups and ester groups with respect to 100 mol % of structural units derived from dicarboxylic acids.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: January 28, 2020
    Assignee: KURARAY CO., LTD.
    Inventor: Kozo Tamura
  • Patent number: 10480749
    Abstract: The present invention provides a polyamide composition for a reflector having high heat resistance and good mechanical properties, having excellent adhesion to a sealing material for an LED package, and capable of retaining a high reflectance even after exposure to heat and light intended for the production process of the LED package and the environment in which the reflector is used in the LED package, when it is molded. The present invention is a polyamide composition for a reflector, containing: 30 mass % or more of a polyamide (A) having a melting point of 280° C. or higher; and 25 mass % or more of titanium oxide (B). The total content of the polyamide (A) and the titanium oxide (B) is 75 mass % or more.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: November 19, 2019
    Assignee: KURARAY CO., LTD.
    Inventors: Kozo Tamura, Takaharu Shigematsu, Shimon Kanai
  • Patent number: 10407548
    Abstract: The present invention provides a polyamide composition for a reflector having high heat resistance and good mechanical properties, having excellent adhesion to a sealing material for an LED package, and capable of retaining a high reflectance even after exposure to heat and light intended for the production process of the LED package and the environment in which the reflector is used in the LED package, when it is molded. The present invention is a polyamide composition for a reflector, containing: 30 mass % or more of a polyamide (A) having a melting point of 280° C. or higher; and 25 mass % or more of titanium oxide (B). The total content of the polyamide (A) and the titanium oxide (B) is 75 mass % or more.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: September 10, 2019
    Assignee: KURARAY CO., LTD.
    Inventors: Kozo Tamura, Takaharu Shigematsu, Shimon Kanai
  • Patent number: 10364339
    Abstract: A polyamide resin composition includes: 100 parts by mass of (A) a polyamide having a melting point of 280 to 330° C.; 0.5 to 80 parts by mass of (B) aluminum diethylphosphinate; 0.2 to 2 parts by mass of (C) at least one phosphorous acid ester represented by formula (6) or (7); and (E) at least one reinforcing material. A mass ratio of the at least one phosphinic acid salt (B) to the at least one phosphorous acid ester (C) ((B)/(C)) is in a range of from 10 to 100. An average particle diameter of the phosphinic acid salt (B) is 0.1 to 100 ?m. The polyamide resin composition does not comprise a metallic soap-based lubricant.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: July 30, 2019
    Assignee: KURARAY CO., LTD.
    Inventors: Kozo Tamura, Hideaki Suzuki, Shimon Kanai
  • Patent number: 10253181
    Abstract: The present invention provides a reflector for an LED, including a polyamide composition and configure to keep high reflectance and high degree of whiteness even after being irradiated with LED light for a long period of time. The present invention is a reflector for an LED, including a polyamide composition containing polyamide (A) that has dicarboxylic acid units including 50 to 100 mol % of 1,4-cyclohexanedicarboxylic acid units and diamine units including 50 to 100 mol % of aliphatic diamine units having 4 to 18 carbon atoms.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: April 9, 2019
    Assignee: KURARAY CO., LTD.
    Inventors: Kozo Tamura, Hideharu Matsuoka, Ryu Kohase
  • Publication number: 20190031838
    Abstract: Disclosed is a molded article obtained by molding a thermoplastic resin composition, wherein the thermoplastic resin composition contains a thermoplastic resin (A) and an inorganic filler (B); the content of the inorganic filler (B) is 60 to 150 parts by mass based on 100 parts by mass of the thermoplastic resin (A); the content of a plate-shaped inorganic filler (b1) having an average thickness of 4.0 ?m or less and an aspect ratio of 130 or more in the inorganic filler (B) is 35 to 100% by mass; and a thickness of the thinnest part thereof is 2.0 mm or less.
    Type: Application
    Filed: January 25, 2017
    Publication date: January 31, 2019
    Applicant: KURARAY CO., LTD.
    Inventors: Hideaki SUZUKI, Kozo TAMURA, Hiroyuki OMICHI
  • Patent number: 10090077
    Abstract: The present invention provides a polyamide resin composition not only having an appropriate melt viscosity despite addition of a conductive filler thereto but also having excellent moldability, conductivity, low-temperature impact resistance, and fuel barrier properties. The present invention is a polyamide resin composition containing specific amounts of a polyamide, a modified resin, and a conductive filler. The polyamide contains: dicarboxylic acid units containing 50 mol % or more of terephthalic acid units and/or naphthalenedicarboxylic acid units; and diamine units containing 60 mol % or more of aliphatic diamine units having 4 to 18 carbon atoms, and has terminal amino groups in an amount of 5 to 60 ?mol/g. The modified resin has been modified with an unsaturated compound having a carboxyl group and/or an acid anhydride group.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: October 2, 2018
    Assignee: KURARAY CO., LTD.
    Inventors: Hiroe Kumazawa, Hiroki Yamasaki, Hideaki Suzuki, Kozo Tamura
  • Publication number: 20180200554
    Abstract: A CT value controller includes a storage means, an input means, and a computing means. The storage means stores a function expressing a relative humidity and a CT value regarding a degradation degree of an anticancer agent, an assumed relative humidity, and a CT setting. The input means inputs a measured relative humidity and a measured ozone concentration at a time of degradation treatment of the anticancer agent. The computing means calculates a corrected CT value increment based on a difference between the measured relative humidity and the assumed relative humidity at every input of the relative humidity and the ozone concentration by using the function. The computing means determines a termination of the degradation treatment of the anticancer agent when an integrated CT value of the corrected CT value increments reaches the CT setting.
    Type: Application
    Filed: March 14, 2018
    Publication date: July 19, 2018
    Applicants: TAMURA TECO CO., LTD., KINKI UNIVERSITY
    Inventors: Kozo TAMURA, Yoshiyuki FUKUDA, Shunji ISHIWATA, Atsushi TAGA
  • Patent number: 10004932
    Abstract: There are provided an anticancer agent degradation method for protecting medical professionals from exposure to an anticancer agent externally scattered in, for example, a safety cabinet or prescription laboratory, during drug preparation or other circumstance, and an anticancer agent degradation apparatus for use with this anticancer agent degradation method. Anticancer agent flyoff in a safety cabinet, etc. is degraded by exploiting an action of ozone-containing air humidified by humidifying means. A relative humidity of humidified ozone-containing air is preferably greater than or equal to 80%. In controlling degradation treatment on the basis of CT values, a difference between expected humidity and measured humidity is reflected in an increment of CT value to understand the progress of anticancer agent degradation properly.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: June 26, 2018
    Assignees: TAMURA TECO CO., LTD., KINKI UNIVERSITY
    Inventors: Kozo Tamura, Yoshiyuki Fukuda, Shunji Ishiwata, Atsushi Taga
  • Publication number: 20180104369
    Abstract: A safety cabinet is capable of preventing ozone gas from leaking out of a working chamber during decontamination and circulating the ozone gas in the working chamber to decontaminate the working chamber. The safety cabinet includes a cabinet main body; a shutter that allows opening/closing of an opening part communicatively connecting to a working chamber; an exhaust path through which gas is exhausted from the working chamber; an exhaust valve that is provided in the exhaust path; an air supply and circulating fan that is provided in the working chamber; an ozone generator that introduces ozone gas into the working chamber; a control part that controls the exhaust valve; an air supply and circulating fan; and airtightly closing device that allows the shutter to airtightly close the opening part are included.
    Type: Application
    Filed: July 7, 2016
    Publication date: April 19, 2018
    Applicants: AIRTECH JAPAN, LTD., TAMURA TECO CO., LTD.
    Inventors: Naoki WATANABE, Raku SHU, Kozo TAMURA, Hiroyuki NISHIZAWA
  • Patent number: 9822949
    Abstract: The present invention provides a polyamide composition for a reflector having high heat resistance and good mechanical properties, having excellent adhesion to a sealing material for an LED package, and capable of retaining a high reflectance even after exposure to heat and light intended for the production process of the LED package and the environment in which the reflector is used in the LED package, when it is molded. The present invention is a polyamide composition for a reflector, containing: 30 mass % or more of a polyamide (A) having a melting point of 280° C. or higher; and 25 mass % or more of titanium oxide (B). The total content of the polyamide (A) and the titanium oxide (B) is 75 mass % or more.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: November 21, 2017
    Assignee: KURARAY CO., LTD.
    Inventors: Kozo Tamura, Takaharu Shigematsu, Shimon Kanai
  • Publication number: 20170015787
    Abstract: The present invention provides a polyamide having excellent heat resistance, water resistance, and impact resistance. The present invention relates to a polyamide including: structural units derived from an aromatic dicarboxylic acid; and structural units derived from an aliphatic diamine. This polyamide contains 0.40 to 0.70 mol % in total of hydroxyl groups and ester groups with respect to 100 mol % of structural units derived from dicarboxylic acids.
    Type: Application
    Filed: March 6, 2015
    Publication date: January 19, 2017
    Applicant: KURARAY CO., LTD.
    Inventor: Kozo Tamura
  • Publication number: 20160130422
    Abstract: [Problem] Provided are a polyamide resin composition which is not only excellent in flame retardancy and heat resistance but also excellent in strength, exhibits a high brightness before and after a reflow step, and even after going through the reflow step, is small in yellowing, and a molded article including the same. [Solution] A polyamide resin composition including, based on 100 parts by mass of (A) a polyamide having a melting point of 280 to 330° C., 0.5 to 80 parts by mass of (B) at least one phosphinic acid salt represented by the following formula (1) or (2) and 0.001 to 7 parts by mass of (C) at least one phosphorous acid ester represented by the following formula (3) or (4). In the formulae, R1 to R17, M, m, n, and x are defined in the description.
    Type: Application
    Filed: June 13, 2014
    Publication date: May 12, 2016
    Applicant: KURARAY CO., LTD.
    Inventors: Kozo TAMURA, Hideaki SUZUKI, Shimon KANAI
  • Publication number: 20160121152
    Abstract: There are provided an anticancer agent degradation method for protecting medical professionals from exposure to an anticancer agent externally scattered in, for example, a safety cabinet or prescription laboratory, during drug preparation or other circumstance, and an anticancer agent degradation apparatus for use with this anticancer agent degradation method. Anticancer agent flyoff in a safety cabinet, etc. is degraded by exploiting an action of ozone-containing air humidified by humidifying means. A relative humidity of humidified ozone-containing air is preferably greater than or equal to 80%. In controlling degradation treatment on the basis of CT values, a difference between expected humidity and measured humidity is reflected in an increment of CT value to understand the progress of anticancer agent degradation properly.
    Type: Application
    Filed: June 18, 2014
    Publication date: May 5, 2016
    Applicants: TAMURA TECO CO., LTD., KINKI UNIVERSITY
    Inventors: Kozo Tamura, Yoshiyuki Fukuda, Shunji Ishiwata, Atsushi Taga
  • Publication number: 20130296472
    Abstract: The present invention provides a polyamide composition for a reflector having high heat resistance and good mechanical properties, having excellent adhesion to a sealing material for an LED package, and capable of retaining a high reflectance even after exposure to heat and light intended for the production process of the LED package and the environment in which the reflector is used in the LED package, when it is molded. The present invention is a polyamide composition for a reflector, containing: 30 mass % or more of a polyamide (A) having a melting point of 280° C. or higher; and 25 mass % or more of titanium oxide (B). The total content of the polyamide (A) and the titanium oxide (B) is 75 mass % or more.
    Type: Application
    Filed: January 20, 2012
    Publication date: November 7, 2013
    Applicant: KURARAY CO., LTD.
    Inventors: Kozo Tamura, Takaharu Shigematsu, Shimon Kanai
  • Publication number: 20130295308
    Abstract: The present invention provides a polyamide resin composition not only having an appropriate melt viscosity despite addition of a conductive filler thereto but also having excellent moldability, conductivity, low-temperature impact resistance, and fuel barrier properties. The present invention is a polyamide resin composition containing specific amounts of a polyamide, a modified resin, and a conductive filler. The polyamide contains: dicarboxylic acid units containing 50 mol % or more of terephthalic acid units and/or naphthalenedicarboxylic acid units; and diamine units containing 60 mol % or more of aliphatic diamine units having 4 to 18 carbon atoms, and has terminal amino groups in an amount of 5 to 60 ?mol/g. The modified resin has been modified with an unsaturated compound having a carboxyl group and/or an acid anhydride group.
    Type: Application
    Filed: January 12, 2012
    Publication date: November 7, 2013
    Applicant: KURARAY CO., LTD.
    Inventors: Hiroe Kumazawa, Hiroki Yamasaki, Hideaki Suzuki, Kozo Tamura
  • Publication number: 20130286654
    Abstract: The present invention provides a polyamide composition for a reflector having high heat resistance and good mechanical properties, having excellent adhesion to a sealing material for an LED package, and capable of retaining a high reflectance even after exposure to heat and light intended for the production process of the LED package and the environment in which the reflector is used in the LED package, when it is molded. The present invention is a polyamide composition for a reflector, containing: 30 mass % or more of a polyamide (A) having a melting point of 280° C. or higher; and 25 mass % or more of titanium oxide (B). The total content of the polyamide (A) and the titanium oxide (B) is 75 mass % or more.
    Type: Application
    Filed: July 1, 2013
    Publication date: October 31, 2013
    Applicant: Kuraray Co., Ltd
    Inventors: Kozo Tamura, Takaharu Shigematsu, Shimon Kanai
  • Publication number: 20130286655
    Abstract: The present invention provides a polyamide composition for a reflector having high heat resistance and good mechanical properties, having excellent adhesion to a sealing material for an LED package, and capable of retaining a high reflectance even after exposure to heat and light intended for the production process of the LED package and the environment in which the reflector is used in the LED package, when it is molded. The present invention is a polyamide composition for a reflector, containing: 30 mass % or more of a polyamide (A) having a melting point of 280° C. or higher; and 25 mass % or more of titanium oxide (B). The total content of the polyamide (A) and the titanium oxide (B) is 75 mass % or more.
    Type: Application
    Filed: July 1, 2013
    Publication date: October 31, 2013
    Inventors: Kozo TAMURA, Takaharu Shigematsu, Shimon Kanai