Patents by Inventor Hiroshi Tajima

Hiroshi Tajima 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: 20240172405
    Abstract: An electromagnetic wave shielding film has permeability to volatile components, shielding characteristics, and resistance to folding. The electromagnetic wave shielding film includes an adhesive layer; a metal layer made of a metal and placed on the adhesive layer; and an insulating layer placed on the metal layer. Multiple openings are formed in the metal layer; the openings include openings (A) including island-shaped metal layer fragments, each opening (A) having island-shaped metal layer fragments formed therein, and the openings (A) including island-shaped metal layer fragments include openings (A1) including one or more island-shaped metal layer fragments. Each opening (A1) defines an opening (A) including island-shaped metal layer fragments in which a total area of the island-shaped metal layer fragments accounts for 40 to 80% of an area inside a contour of the opening (A).
    Type: Application
    Filed: March 29, 2022
    Publication date: May 23, 2024
    Inventors: Takahiko KATSUKI, Hiroshi TAJIMA, Sirou YAMAUCHI
  • Publication number: 20240158676
    Abstract: Provided is a conductive adhesive sheet that has excellent connection stability even containing conductive particles in a small proportion. The inventive conductive adhesive sheet contains a binder component and conductive particles. The conductive particles are distributively arranged. Assume that all the conductive particles are regularly arranged; and that an optional region of the conductive adhesive sheet is viewed in plan view so that a distribution number Np of the distributed conductive particles be 9 to 25, a condition: 1.5X?Y?100X is met, where X represents the average of equivalent circle diameters of the distributed conductive particles; and Y represents the center-to-center distance between adjacent two of the distributed conductive particles, which are regularly arranged in the plan view. The ratio N/Np is 1.0 to 100.0, where N represents the number of the primary particles in the optional region.
    Type: Application
    Filed: January 19, 2024
    Publication date: May 16, 2024
    Inventors: Yuusuke HARUNA, Kenji AOKI, Hiroshi TAJIMA, Sougo ISHIOKA
  • Publication number: 20240150638
    Abstract: It is an object of the present invention to provide a thermally conductive sheet that is excellent in thermally conductive property, has insulation property, has a low permittivity, and is excellent in designability. The thermally conductive sheet 1 comprises a binder component 11, titanium oxide, titanium nitride, and a thermally conductive filler 12 other than these, and a ratio of the titanium oxide to the total of the titanium oxide and the titanium nitride is 20 to 90% by mass. An L* value of a surface of the thermally conductive sheet 1 in the L*a*b* color system is preferably 41 or less. The total content of the titanium oxide and the titanium nitride is preferably 0.3 to 10.0 parts by mass based on the total amount 100 parts by mass of the thermally conductive filler 12.
    Type: Application
    Filed: March 11, 2022
    Publication date: May 9, 2024
    Inventors: Yuusuke HARUNA, Hiroshi TAJIMA, Shigekazu UMEMURA, Kanoe KOMATSU, Yuu IIHARA, Junichi KINOSHITA, Kiyoshi IWAI
  • Patent number: 11964084
    Abstract: The present invention relates to a phosphate adsorbing agent for blood processing comprising a porous formed article comprising an organic polymer resin and an inorganic ion adsorbent and having the most frequent pore size of 0.08 to 0.70 ?m measured with a mercury porosimeter. The present invention also relates to a blood processing system and a blood processing method involving the phosphate adsorbing agent for blood processing.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: April 23, 2024
    Assignee: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Naoki Morita, Hiroshi Tajima, Ryou Sasaki, Hirokazu Nagai, Akihiro Omori
  • Patent number: 11878101
    Abstract: A blood purification device includes a porous molded body containing an inorganic ion-adsorbing material and is characterized by the following: the concentrations of Mg, Al, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Ga, Rb, Sr, Y, Zr, Mo, Ru, Ag, Cd, Sn, Cs, La, Pr, Sm, Gd, Tb, Ta, Au, Tl, Co, In, and Bi are each 0.1 ppb or less and the concentrations of Ba, Nd, Pb, And Ce are each 1 ppb or less in a physiological saline solution for injection both three months and six months after said physiological saline solution for injection is sealed in the blood purification device; and the number of fine particles having a size of 10 ?m or more is 25 or less and the number of fine particles having a size of 25 ?m or more is 3 or less in 1 mL of the physiological saline solution for injection.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: January 23, 2024
    Assignee: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Teruhiko Oishi, Makoto Ozeki, Keitaro Matsuyama, Naoki Morita, Hiroshi Tajima, Toshinori Koizumi
  • Patent number: 11806461
    Abstract: Provided is a blood purification device including a porous molded body that has a high phosphorus adsorption capacity and that can be used safely. A blood purification device includes a porous molded body containing an inorganic ion-adsorbing material and is characterized by the following: said blood purification device satisfies the relationship B=?0.02 A+2.175±0.185 (74?A?94) when the moisture content of the porous molded body is denoted by A and the bulk density is denoted by B; and the number of fine particles having a size of 10 ?m or more is 25 or less and the number of fine particles having a size of 25 ?m or more is 3 or less in 1 mL of a physiological saline solution for injection both three months and six months after said physiological saline solution for injection is sealed in the blood purification device.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: November 7, 2023
    Assignee: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Teruhiko Oishi, Naoki Morita, Keitaro Matsuyama, Hiroshi Tajima, Toshinori Koizumi
  • Publication number: 20230337408
    Abstract: An electromagnetic wave shielding film that can be thinned, and has high peel strength, electroconductivity, shielding properties, and flex resistance and conformability to a step is provided.
    Type: Application
    Filed: September 22, 2021
    Publication date: October 19, 2023
    Inventors: Yoshiharu YANAGI, Hiroshi TAJIMA
  • Patent number: 11758705
    Abstract: Provided is an electromagnetic wave shielding film capable of easily exhibiting excellent conductivity between a ground member and a shielding layer when the ground member is disposed on the electromagnetic wave shielding film. In the electromagnetic wave shielding film 1, the conductive adhesive layer 11, the shielding layer 12, and the insulating layer 13 are laminated in this order, and a ratio [conductive adhesive layer/insulating layer] of Martens hardness of the conductive adhesive layer 11 in accordance with ISO14577-1 to Martens hardness of the insulating layer 13 in accordance with ISO14577-1 is 0.3 or more.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: September 12, 2023
    Assignee: TATSUTA ELECTRIC WIRE & CABLE CO., LTD
    Inventors: Takahiko Katsuki, Hiroshi Tajima, Yuusuke Haruna
  • Publication number: 20230086849
    Abstract: Provided is an electromagnetic wave shielding film capable of easily exhibiting excellent conductivity between a ground member and a shielding layer when the ground member is disposed on the electromagnetic wave shielding film. In the electromagnetic wave shielding film 1, the conductive adhesive layer 11, the shielding layer 12, and the insulating layer 13 are laminated in this order, and a ratio [conductive adhesive layer/insulating layer] of Martens hardness of the conductive adhesive layer 11 in accordance with ISO14577-1 to Martens hardness of the insulating layer 13 in accordance with ISO14577-1 is 0.3 or more.
    Type: Application
    Filed: February 25, 2021
    Publication date: March 23, 2023
    Inventors: Takahiko KATSUKI, Hiroshi TAJIMA, Yuusuke HARUNA
  • Publication number: 20220387682
    Abstract: The present invention relates to a phosphate adsorbing agent for blood processing comprising a porous formed article comprising an organic polymer resin and an inorganic ion adsorbent and having the most frequent pore size of 0.08 to 0.70 ?m measured with a mercury porosimeter. The present invention also relates to a blood processing system and a blood processing method involving the phosphate adsorbing agent for blood processing.
    Type: Application
    Filed: August 16, 2022
    Publication date: December 8, 2022
    Applicant: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Naoki MORITA, Hiroshi TAJIMA, Ryou SASAKI, Hirokazu NAGAI, Akihiro OMORI
  • Patent number: 11457527
    Abstract: Provided is a shielded printed wiring board that exhibits excellent connection stability even when having a through-hole with a small opening area, and enables a high degree of freedom in circuit design. The shielded printed wiring board 1 according to the present invention includes a printed wiring board 10, an insulating layer 22, and a conductive adhesive layer 21 disposed between the printed wiring board 10 and the insulating layer 22. The printed wiring board 10 includes a base 11, a circuit pattern 13 disposed on the base, and an insulating protective layer 14 covering the circuit pattern 13. The shielded printed wiring board has a through-hole 23 for external grounding that vertically penetrates the insulating layer 22 and the conductive adhesive layer 21. The conductive adhesive layer 21 has an extension 21a extending toward the inside of the through-hole 23 as compared with the insulating layer 22.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: September 27, 2022
    Assignee: TATSUTA ELECTRIC WIRE & CABLE CO., LTD.
    Inventors: Yuusuke Haruna, Shirou Yamauchi, Hiroshi Tajima, Sougo Ishioka
  • Publication number: 20220220346
    Abstract: Provided is a conductive adhesive sheet that has excellent connection stability even containing conductive particles in a small proportion. The inventive conductive adhesive sheet contains a binder component and conductive particles. The conductive particles are distributively arranged. Assume that all the conductive particles are regularly arranged; and that an optional region of the conductive adhesive sheet is viewed in plan view so that a distribution number Np of the distributed conductive particles be 9 to 25, a condition: 1.5X?Y?100X is met, where X represents the average of equivalent circle diameters of the distributed conductive particles; and Y represents the center-to-center distance between adjacent two of the distributed conductive particles, which are regularly arranged in the plan view. The ratio N/Np is 1.0 to 100.0, where N represents the number of the primary particles in the optional region.
    Type: Application
    Filed: May 20, 2020
    Publication date: July 14, 2022
    Inventors: Yuusuke HARUNA, Kenji AOKI, Hiroshi TAJIMA, Sougo ISHIOKA
  • Publication number: 20220030699
    Abstract: Provided is a shielded printed wiring board that exhibits excellent connection stability even when having a through-hole with a small opening area, and enables a high degree of freedom in circuit design. The shielded printed wiring board 1 according to the present invention includes a printed wiring board 10, an insulating layer 22, and a conductive adhesive layer 21 disposed between the printed wiring board 10 and the insulating layer 22. The printed wiring board 10 includes a base 11, a circuit pattern 13 disposed on the base, and an insulating protective layer 14 covering the circuit pattern 13. The shielded printed wiring board has a through-hole 23 for external grounding that vertically penetrates the insulating layer 22 and the conductive adhesive layer 21. The conductive adhesive layer 21 has an extension 21a extending toward the inside of the through-hole 23 as compared with the insulating layer 22.
    Type: Application
    Filed: December 12, 2019
    Publication date: January 27, 2022
    Inventors: Yuusuke HARUNA, Shirou YAMAUCHI, Hiroshi TAJIMA, Sougo ISHIOKA
  • Patent number: 11224871
    Abstract: The present invention provides a phosphate adsorbing agent for blood processing comprising a porous formed article comprising an organic polymer resin and an inorganic ion adsorbent and having a most frequent pore size of 0.08 to 0.70 ?m measured with a mercury porosimeter, the phosphate adsorbing agent for blood processing having a biocompatible polymer in the surface of the porous formed article.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: January 18, 2022
    Assignee: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Naoki Morita, Hiroshi Tajima, Masashi Kogawa
  • Publication number: 20210410272
    Abstract: Provided is a method of producing a shielded printed wiring board capable of sufficiently adhering to each other a printed wiring board, an adhesive layer of an electromagnetic wave shielding film on one face of the printed wiring board, and an adhesive layer of an electromagnetic wave shielding film on the other face of the printed wiring board.
    Type: Application
    Filed: December 10, 2019
    Publication date: December 30, 2021
    Inventors: Sirou YAMAUCHI, Hiroshi TAJIMA, Yuusuke HARUNA, Takahiko KATSUKI
  • Publication number: 20210353845
    Abstract: Provided is a blood purification device including a porous molded body that has a high phosphorus adsorption capacity and that can be used safely. A blood purification device includes a porous molded body containing an inorganic ion-adsorbing material and is characterized by the following: said blood purification device satisfies the relationship B=?0.02 A+2.175±0.185 (74?A?94) when the moisture content of the porous molded body is denoted by A and the bulk density is denoted by B; and the number of fine particles having a size of 10 ?m or more is 25 or less and the number of fine particles having a size of 25 ?m or more is 3 or less in 1 mL of a physiological saline solution for injection both three months and six months after said physiological saline solution for injection is sealed in the blood purification device.
    Type: Application
    Filed: March 29, 2019
    Publication date: November 18, 2021
    Applicant: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Teruhiko OISHI, Naoki MORITA, Keitaro MATSUYAMA, Hiroshi TAJIMA, Toshinori KOIZUMI
  • Publication number: 20210084751
    Abstract: Embodiments of a printed wiring board configured to inhibit increases in electrical resistance between a ground circuit and a reinforcement member are disclosed. The printed wiring board has a substrate film with a base film and a printed circuit, which printed circuit includes a ground circuit; an adhesive layer formed on the substrate film; and a conductive reinforcement member formed on the adhesive layer. The adhesive layer includes conductive particles. One or more layers of low-melting-point metal is or are provided between the adhesive layer and the substrate film; between the adhesive layer and the reinforcement member; and/or around the conductive particles.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Yuusuke HARUNA, Takahiko KATSUKI, Tsuyoshi HASEGAWA, Hiroshi TAJIMA
  • Publication number: 20210059042
    Abstract: It is an object of the present invention to provide an electromagnetic shielding film having excellent high frequency signal transmission characteristics and excellent shielding characteristics against electromagnetic waves in a high frequency region and a shielded printed wiring board including the same. An electromagnetic shielding film 1 includes a shielding layer that is formed by a first metal layer mainly comprised of nickel and a second metal layer mainly comprised of copper, an adhesive layer formed on the second metal layer side of the shielding layer, and a protective layer formed on the first metal layer side of the shielding layer which is the opposite side of the shielding layer from the second metal layer side. The first metal layer has a thickness T1 of 2 ?m or more and 10 ?m or less, and the second metal layer has a thickness T2 of 2 ?m or more and 10 ?m or less.
    Type: Application
    Filed: July 10, 2017
    Publication date: February 25, 2021
    Inventors: Sirou YAMAUCHI, Masahiro WATANABE, Hiroshi TAJIMA
  • Publication number: 20210008270
    Abstract: A blood purification device includes a porous molded body containing an inorganic ion-adsorbing material and is characterized by the following: the concentrations of Mg, Al, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Ga, Rb, Sr, Y, Zr, Mo, Ru, Ag, Cd, Sn, Cs, La, Pr, Sm, Gd, Tb, Ta, Au, Tl, Co, In, and Bi are each 0.1 ppb or less and the concentrations of Ba, Nd, Pb, And Ce are each 1 ppb or less in a physiological saline solution for injection both three months and six months after said physiological saline solution for injection is sealed in the blood purification device; and the number of fine particles having a size of 10 ?m or more is 25 or less and the number of fine particles having a size of 25 ?m or more is 3 or less in 1 mL of the physiological saline solution for injection.
    Type: Application
    Filed: March 29, 2019
    Publication date: January 14, 2021
    Applicant: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Teruhiko OISHI, Makoto OZEKI, Keitaro MATSUYAMA, Naoki MORITA, Hiroshi TAJIMA, Toshinori KOIZUMI
  • Publication number: 20200171479
    Abstract: The present invention provides a phosphate adsorbing agent for blood processing comprising a porous formed article comprising an organic polymer resin and an inorganic ion adsorbent and having a most frequent pore size of 0.08 to 0.70 ?m measured with a mercury porosimeter, the phosphate adsorbing agent for blood processing having a biocompatible polymer in the surface of the porous formed article.
    Type: Application
    Filed: May 17, 2018
    Publication date: June 4, 2020
    Applicant: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Naoki MORITA, Hiroshi TAJIMA, Masashi KOGAWA