Patents by Inventor Shunsuke MASAKI

Shunsuke MASAKI 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: 20230390686
    Abstract: A filter pleat pack includes an air filter medium including: a first porous fluorine resin membrane; and a first air-permeable supporting layer. The first air-permeable supporting layer is placed on a downstream side in a direction of an air flow that passes through the filter medium with respect to the first porous fluorine resin membrane, and includes a ventilation inhibiting portion in at least one end portion in a width direction, the ventilation inhibiting portion extending along the at least one end portion, the ventilation inhibiting portion inhibiting ventilation in the width direction through the first air-permeable supporting layer. The ventilation inhibiting portion is in contact with the first porous fluorine resin membrane. This filter pleat pack is suitable for reducing a decrease in the collection efficiency of an air filter unit even when a gap between a lateral surface of the pleat pack and a frame is sealed.
    Type: Application
    Filed: October 27, 2021
    Publication date: December 7, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shunsuke MASAKI, Yusuke IKEMURA, Masaaki MORI
  • Publication number: 20230372858
    Abstract: An air filter medium includes a collection layer, an air-permeable adhesive layer, and a porous fluorine resin membrane in this order from upstream to downstream of the filter medium. An initial pressure drop of the filter medium at a permeate flow rate of 5.3 cm/sec is 250 Pa or less. When a test is performed in which polydisperse polyalphaolefin particles having a peak in number in a particle size range of 0.1 to 0.2 ?m are allowed to pass through the filter medium at a concentration of 0.2 to 0.5 g/m3 and a linear velocity of 5.3 cm/sec, the holding amount is 43.0 g/m2 or more from a moment when the holding amount reaches 20 g/m2 to when a moment the pressure drop reaches PD1+120 Pa, where PD1 is the pressure drop of the filter medium at the moment when the holding amount reaches 20 g/m2.
    Type: Application
    Filed: September 28, 2021
    Publication date: November 23, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yusuke IKEMURA, Masaaki MORI, Shunsuke MASAKI, Go SATO
  • Publication number: 20230364547
    Abstract: A provided air filter medium is an air filter medium including a porous fluorine resin membrane, the air filter medium further including: a glass filter medium layer. The glass filter medium layer and the porous fluorine resin membrane are placed in this order from upstream to downstream of the air filter medium configured to allow an air flow to pass through the air filter medium. At a surface of the glass filter medium layer on an upstream side in a direction of the air flow, a carbon-to-silicon ratio (C/Si) evaluated by X-ray fluorescent analysis is 0.020 or more. This air filter medium is suitable for reducing a pressure drop increase even in an environment including liquid particles such as oil mist.
    Type: Application
    Filed: September 28, 2021
    Publication date: November 16, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Go SATO, Masaaki MORI, Shunsuke MASAKI, Yusuke IKEMURA
  • Publication number: 20230356152
    Abstract: An air filter medium includes a porous fluorine resin membrane, and further includes, a collection layer, an air-permeable adhesive layer, and an air-permeable supporting layer. The collection layer, the air-permeable adhesive layer, the air-permeable supporting layer, and the porous fluorine resin membrane are placed in this order from upstream to downstream of the air filter medium configured to allow an air flow to pass through the air filter medium. The collection layer is formed of a fibrous material having an average fiber diameter of 5 µm or less. The air-permeable adhesive layer has a grammage of 5.5 g/m2 or more. The air-permeable supporting layer is formed of a fibrous material having an average fiber diameter of more than 5 µm. This air filter medium is suitable for reducing a pressure drop increase even in an environment including liquid particles such as oil mist.
    Type: Application
    Filed: September 28, 2021
    Publication date: November 9, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masaaki MORI, Go SATO, Shunsuke MASAKI, Yusuke IKEMURA
  • Publication number: 20220193618
    Abstract: A filter medium of the present disclosure has a laminate structure composed of a first polytetrafluoroethylene (PTFE) porous membrane, a first air-permeable supporting member, a second PTFE porous membrane, and a second air-permeable supporting member laminated in this order. The first PTFE porous membrane constitutes an exposed surface of the filter medium. A ratio of a transmittance of the first PTFE porous membrane to a transmittance of the second PTFE porous membrane is 100 or more. The filter medium of the present disclosure is a filter medium which includes the PTFE porous membranes, from which dust deposited on a surface over a period of use can be easily removed, and which has excellent reusability demonstrated by reduction of a filtration performance decrease caused by removal of dust.
    Type: Application
    Filed: April 3, 2020
    Publication date: June 23, 2022
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shunsuke MASAKI, Masaaki MORI
  • Patent number: 10546696
    Abstract: The purpose of the present invention is to provide an electrochemical element that can withstand prolonged use, with little damage or degradation due to the pressure of hydrogen gas generated, even when used for prolonged periods of time. This electrochemical element is equipped with a hydrogen-releasing film and has a laminated body in which an anode and a cathode are laminated with a separator interposed therebetween. The hydrogen-releasing film contains a metal layer, the separator contains pulp, and the total sulfur component content in the separator is 400 ppm or less as determined by quartz tube combustion gas absorption ion chromatography.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: January 28, 2020
    Assignee: NITTO DENKO CORPORATION
    Inventors: Takahiro Fukuoka, Shunsuke Masaki, Takuya Muraoka
  • Patent number: 10439185
    Abstract: The objective of the present invention is to provide a hydrogen-releasing film, a composite hydrogen-releasing film and a hydrogen-releasing laminated film that are not prone to embrittlement in the usage environmental temperatures of electrochemical elements. The hydrogen-releasing film containing an alloy, wherein the alloy is a Pd—Au alloy, and the Au content in the Pd—Au alloy is 15 mol % or more.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: October 8, 2019
    Assignee: NITTO DENKO CORPORATION
    Inventors: Takahiro Fukuoka, Kyoko Ishii, Shunsuke Masaki, Kenta Hata, Hiroshi Yukawa, Tomonori Nanbu
  • Patent number: 10374202
    Abstract: The objective of the present invention is to provide a hydrogen-releasing film, a composite hydrogen-releasing film and a hydrogen-releasing laminated film that are not prone to embrittlement in the usage environmental temperatures of electrochemical elements. The hydrogen-releasing film containing an alloy, wherein the alloy is a Pd—Au alloy, and the Au content in the Pd—Au alloy is 15 mol % or more.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: August 6, 2019
    Assignee: NITTO DENKO CORPORATION
    Inventors: Takahiro Fukuoka, Kyoko Ishii, Shunsuke Masaki, Kenta Hata, Hiroshi Yukawa, Tomonori Nanbu
  • Publication number: 20190015266
    Abstract: In a pull-on diaper, a distance dimension between outer end portions of front and rear waist panels is in a range of 300 mm to 400 mm as measured on the diaper flatly developed after coupling of the front and rear waist panels in seam regions has been released. A distance dimension between the waist elastic closest to an inner end portion of the front waist panel among waist elastics extending in the front waist panel across the respective seam regions in the front waist panel and the waist elastic closest to an inner end portion of the rear waist panel among waist elastics extending in the rear waist panel across the respective seam regions is at least 55% of the distance dimension between respective outer end portions of the front and rear waist panels.
    Type: Application
    Filed: September 19, 2018
    Publication date: January 17, 2019
    Inventors: Masumi FUKUZAWA, Shunsuke MASAKI
  • Publication number: 20180366275
    Abstract: The purpose of the present invention is to provide an electrochemical element that can withstand prolonged use, with little damage or degradation due to the pressure of hydrogen gas generated, even when used for prolonged periods of time. This electrochemical element is equipped with a hydrogen-releasing film and has a laminated body in which an anode and a cathode are laminated with a separator interposed therebetween. The hydrogen-releasing film contains a metal layer, the separator contains pulp, and the total sulfur component content in the separator is 400 ppm or less as determined by quartz tube combustion gas absorption ion chromatography.
    Type: Application
    Filed: December 13, 2016
    Publication date: December 20, 2018
    Applicant: NITTO DENKO CORPORATION
    Inventors: Takahiro FUKUOKA, Shunsuke MASAKI, Takuya MURAOKA
  • Patent number: 10123913
    Abstract: In a pull-on diaper, a first distance dimension between outer end portions of front and rear waist panels is in a range of 300 mm to 400 mm as measured on the diaper flatly developed after coupling of the front and rear waist panels in seam regions has been released. A second distance dimension between the waist elastic closest to an inner end portion of the front waist panel among waist elastics extending in the front waist panel across the respective seam regions in the front waist panel and the waist elastic closest to an inner end portion of the rear waist panel among waist elastics extending in the rear waist panel across the respective seam regions is at least 55% of the first distance dimension between outer end portions of the front and rear waist panels.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: November 13, 2018
    Assignee: UNICHARM CORPORATION
    Inventors: Masumi Fukuzawa, Shunsuke Masaki
  • Publication number: 20180053923
    Abstract: An object of the invention is to provide a hydrogen-releasing film which rarely undergoes the deterioration in hydrogen-releasing performance even when used for a long period. In addition, it is another object of the present invention to provide a safety valve for an electrochemical element, wherein the valve is provided with the hydrogen-releasing film, and to provide an electrochemical element having the safety valve. A hydrogen-releasing film having a metal layer, wherein at least one surface of the hydrogen-releasing film has a water contact angle of 85° or more.
    Type: Application
    Filed: March 3, 2016
    Publication date: February 22, 2018
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shunsuke MASAKI, Takahiro FUKUOKA, Kyoko ISHII, Keiko FUJIWARA
  • Patent number: 9814633
    Abstract: A pull-on diaper for younger baby has a transverse direction and a longitudinal direction, front and waist regions, a crotch region, and rear waist regions and leg cuffs extending along respective laterals of the crotch region. Each of front and rear waist panels is sectionalized into a first elastically contractible region and a second elastically contractible region wherein a dimensional ratio in the longitudinal direction between the first elastically contractible region and the second elastically contractible region is in a range of 1:1.6 to 1:2.2 and an elongation ratio of waist elastics attached to the first elastically contractible region is lower than an elongation ratio of the waist elastics attached to the second elastically contractible region and the elongation ratio of the waist elastics attached to the second elastically contractible region is lower than an elongation ratio of leg cuff elastics.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: November 14, 2017
    Assignee: UNICHARM CORPORATION
    Inventors: Masumi Fukuzawa, Shunsuke Masaki
  • Publication number: 20170133648
    Abstract: The objective of the present invention is to provide a hydrogen-releasing film, a composite hydrogen-releasing film and a hydrogen-releasing laminated film that are not prone to embrittlement in the usage environmental temperatures of electrochemical elements. The hydrogen-releasing film containing an alloy, wherein the alloy is a Pd—Au alloy, and the Au content in the Pd—Au alloy is 15 mol % or more.
    Type: Application
    Filed: June 12, 2015
    Publication date: May 11, 2017
    Applicant: NITTO DENKO CORPORATION
    Inventors: Takahiro FUKUOKA, Kyoko ISHII, Shunsuke MASAKI, Kenta HATA, Hiroshi YUKAWA, Tomonori NANBU
  • Patent number: 9375359
    Abstract: A pants-type wearing article that provides effective buttocks covering having a front panel, a rear panel and a crotch panel connected to the front panel and the rear panel so as to cover a crotch region of the article wearer. The rear panel is formed with a rear waist covering portion having a dimension in the longitudinal direction substantially the same as a dimension of the front panel and a buttocks covering portion contiguously extending downward from the rear waist covering portion and adapted to cover at least partially the wearer's buttocks. The buttocks covering portion has buttock elastics extending in the transverse direction. The buttocks covering portion and the crotch panel are joined to each other in a zone defined between the gasket cuffs opposite to each other in the transverse direction and not joined to each other at portions in which the gasket cuffs are disposed.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: June 28, 2016
    Assignee: Unicharm Corporation
    Inventors: Yuki Hashino, Shunsuke Masaki
  • Patent number: 9358162
    Abstract: A wearing article having a waist-opening that can be easily folded back along a fold line extending in a transverse direction without increasing the stiffness in the vicinity of the waist-opening. A diaper includes front and rear waist members and a crotch member. A liquid-absorbent structure of the crotch member is formed outboard of in a longitudinal direction of a core with front and rear flaps exclusively composed of an absorption surface wrapping sheet, a leakage-barrier sheet and a bottom surface wrapping sheet. The front and rear waist members include first regions overlapping the front and rear flaps, respectively, second regions lying adjacent to the associated first regions and third regions lying adjacent to the associated second regions. The front and rear waist members are provided with the first, second and third waist elastics attached between respective inner and outer sheets in the first, second and third regions, respectively.
    Type: Grant
    Filed: May 30, 2011
    Date of Patent: June 7, 2016
    Assignee: Unicharm Corporation
    Inventors: Seiichi Kuwano, Yuki Hashino, Shunsuke Masaki
  • Publication number: 20150374559
    Abstract: In a pull-on diaper, a distance dimension between outer end portions of front and rear waist panels is in a range of 300 mm to 400 mm as measured on the diaper flatly developed after coupling of the front and rear waist panels in seam regions has been released. A distance dimension between the waist elastic closest to an inner end portion of the front waist panel among waist elastics extending in the front waist panel across the respective seam regions in the front waist panel and the waist elastic closest to an inner end portion of the rear waist panel among waist elastics extending in the rear waist panel across the respective seam regions is at least 55% of the distance dimension between respective outer end portions of the front and rear waist panels.
    Type: Application
    Filed: January 21, 2014
    Publication date: December 31, 2015
    Inventors: Masumi FUKUZAWA, Shunsuke MASAKI
  • Publication number: 20150366724
    Abstract: A pull-on diaper for younger baby has a transverse direction and a longitudinal direction, front and waist regions, a crotch region, and rear waist regions and leg cuffs extending along respective laterals of the crotch region. Each of front and rear waist panels is sectionalized into a first elastically contractible region and a second elastically contractible region wherein a dimensional ratio in the longitudinal direction between the first elastically contractible region and the second elastically contractible region is in a range of 1:1.6 to 1:2.2 and an elongation ratio of waist elastics attached to the first elastically contractible region is lower than an elongation ratio of the waist elastics attached to the second elastically contractible region and the elongation ratio of the waist elastics attached to the second elastically contractible region is lower than an elongation ratio of second leg elastics.
    Type: Application
    Filed: January 21, 2014
    Publication date: December 24, 2015
    Applicant: Unicharm Corporation
    Inventors: Masumi FUKUZAWA, Shunsuke MASAKI
  • Patent number: 9198808
    Abstract: An interior body of a disposable diaper includes a liquid-permeable front sheet, a liquid-impermeable back sheet and a liquid-retaining absorbent core. The front sheet has a single sheet including spunbond layers on the front side and back side and a melt blown layer between the spunbond layers. The absorbent core has fiber aggregates and super-absorbent polymer particles. The front sheet is directly bonded to the skin side surface of the absorbent core. The length of the front sheet is longer than the length of the absorbent core, so that the front sheet has extended sections which extend outward in the lengthwise direction from both ends of the absorbent core in the lengthwise direction, while the extended sections are each continuously connected in the transverse direction with the front sheet or back sheet which overlaps with the extended section. The extended sections can directly contact the skin of the wearer.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: December 1, 2015
    Assignee: UNICHARM CORPORATION
    Inventors: Toshiyasu Yoshioka, Shunsuke Masaki
  • Patent number: 9023006
    Abstract: The present invention aims to provide a wearing article adapted to prevent unintentional displacement of a crotch region relative to front and rear waist regions by elastics attached to the crotch region. A diaper includes front and rear waist members, a crotch member by the intermediary of which the front and rear waist members are connected with each other. The rear waist member is formed with a waist fit section and an appendix section. Of the crotch member, front and rear ends including front and rear end flaps are bonded to the front and rear waist members, respectively, to form front and rear bonded regions. Both side flaps are provided on respective inner surfaces thereof with gasket elastics attached thereto. Each of the gasket elastic overlaps at one end with a part of the front waist elastic and overlaps at the other end with a part of the appendix section elastic. Furthermore, the one end overlaps with the front bonded region and the other end overlaps with the rear bonded regions.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: May 5, 2015
    Assignee: Unicharm Corporation
    Inventors: Shunsuke Takino, Shunsuke Masaki