Patents by Inventor Shunji Akashi

Shunji Akashi 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: 20190339614
    Abstract: [Problem] To provide a chemically amplified positive type photoresist composition capable of forming a pattern having an excellent cross-sectional shape, and a pattern forming method using the same. [Means for Solution] A chemically amplified positive type photoresist composition comprising (A) a polymer which reacts with an acid to increase its solubility in an alkaline aqueous solution, (B) an organic solvent, (C) a first photo acid generator containing a cation having no polar group, and (D) a second photoacid generator containing a cation having a polar group, and a pattern forming method using the same.
    Type: Application
    Filed: January 2, 2018
    Publication date: November 7, 2019
    Inventors: Masato SUZUKI, Shunji KAWATO, Tetsumasa TAKAICHI, Kazumichi AKASHI
  • Publication number: 20190235382
    Abstract: The present invention relates to a photosensitive resin composition suitable for forming a thick film, which comprises (A) an alkali-soluble resin, (B) at least one plasticizer selected from a group consisting of an alkali-soluble vinyl resin and an acid-dissociable group containing vinyl resin, (C) an acid generator, and (D) an organic solvent.
    Type: Application
    Filed: October 10, 2017
    Publication date: August 1, 2019
    Inventors: TETSUMASA TAKAICHI, Shunji KAWATO, Masato SUZUKI, Kazumichi AKASHI, Tomohide KATAYAMA
  • Patent number: 8925161
    Abstract: A readily burstable slide fastener for an inflatable device, such as a lifejacket, includes a first stringer, a second stringer and a slider slidably mounted on the second stringer. At a weakened region along the slide fastener coupling elements are omitted from each of the stringers so that when a bursting force is applied to this region the coupling elements adjacent thereto are disengaged. Coupling elements are omitted from the top of the first stringer so that when the slider is at the top of the coupling elements of the second stringer, the first stringer can disengage from the slider. When the slide fastener is fitted to an inflatable lifejacket, the stringers are separated completely when the lifejacket is inflated.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: January 6, 2015
    Inventors: Shigeyoshi Takasawa, Shunji Akashi, Mark Davies
  • Patent number: 8844101
    Abstract: A reverse opening slide fastener is provided with a pair of first and second separable connection members which are firmly fixed to first and second fastener stringers, and a pair of first and second sliders. A connection and separation operation can be carried out by inserting and removing the second separable connection member into and from the first and second sliders. The second separable connection member has an inserting and removing region which can be inserted into and removed from the first and second sliders via a gap between upper and lower flanges of the first and second sliders. Further, a positioning structure which decides a relative position between the first separable connection member and the second separable connection member is arranged, whereby it is possible to improve an operability of the connection and separation operation.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: September 30, 2014
    Assignee: YKK Corporation
    Inventors: Jiro Nozaki, Shunji Akashi
  • Patent number: 8800118
    Abstract: A readily burstable slide fastener for an inflatable device, such as a lifejacket, that includes a first stringer, a second stringer and a slider slidably mounted on the second stringer. At a weakened region along the slide fastener coupling elements are omitted from each of the stringers so that when a bursting force is applied to this region the coupling elements adjacent thereto are disengaged. The coupling elements are omitted from the top of the first stringer so that when the slider is at the top of the coupling elements of the second stringer, the first stringer can disengage from the slider. When the slide fastener is fitted to an inflatable lifejacket, the stringers are separated completely when the lifejacket is inflated.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: August 12, 2014
    Inventors: Shigeyoshi Takasawa, Shunji Akashi, Mark Davies
  • Patent number: 8701253
    Abstract: A slide fastener in which a fastener element has first and second leg portions continuously disposed at both ends of the coupling head is folded in half at its center, and the first leg portion is attached to a coupling element attaching portion of a fastener tape by a sewing thread. A vulnerable portion which is cut out into a V is formed on the bent end face of the coupling head.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: April 22, 2014
    Assignee: YKK Corporation
    Inventors: Kenji Dono, Shunji Akashi, Hiroshi Ishisaka, Naoyuki Himi
  • Patent number: 8590117
    Abstract: A slide fastener which withstands a predetermined lateral pulling force in a usual usage and is cloven when an excessive lateral pulling force is applied at the time of airbag inflation, wherein the slide fastener in which a plurality of attachment leg portions of coupling teeth, on each of which a coupling head formed to have a relatively large width and the attachment leg portions extending from the coupling head are formed, are attached on a coupling tooth attaching portion of each of a pair of fastener tapes on right and left with a predetermined pitch along a tape longitudinal direction is configured to satisfy a relationship 0.4?(2×H?P)/P?0.1 between a summit height H [mm] of the coupling head formed to have a relatively large width and a pitch P [mm].
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: November 26, 2013
    Assignee: YKK Corporation
    Inventors: Kenji Dono, Shunji Akashi, Hiroshi Ishisaka, Naoyuki Himi
  • Patent number: 8572816
    Abstract: A slide fastener in which a fastener element has first and second leg portions continuously disposed at both ends of the coupling head is folded in half at its center, and the first leg portion is attached to a coupling element attaching portion of a fastener tape by a sewing thread. A vulnerable portion which is cut out into a V is formed on the bent end face of the coupling head.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: November 5, 2013
    Assignee: YKK Corporation
    Inventors: Kenji Dono, Shunji Akashi, Hiroshi Ishisaka, Naoyuki Himi
  • Publication number: 20130139361
    Abstract: A slide fastener in which a fastener element has first and second leg portions continuously disposed at both ends of the coupling head is folded in half at its center, and the first leg portion is attached to a coupling element attaching portion of a fastener tape by a sewing thread. A vulnerable portion which is cut out into a V is formed on the bent end face of the coupling head.
    Type: Application
    Filed: February 1, 2013
    Publication date: June 6, 2013
    Applicant: YKK Corporation
    Inventors: Kenji Dono, Shunji Akashi, Hiroshi Ishisaka, Naoyuki Himi
  • Publication number: 20120260468
    Abstract: A reverse opening slide fastener is provided with a pair of first and second separable connection members which are firmly fixed to first and second fastener stringers, and a pair of first and second sliders. A connection and separation operation can be carried out by inserting and removing the second separable connection member into and from the first and second sliders. The second separable connection member has an inserting and removing region which can be inserted into and removed from the first and second sliders via a gap between upper and lower flanges of the first and second sliders. Further, a positioning structure which decides a relative position between the first separable connection member and the second separable connection member is arranged, whereby it is possible to improve an operability of the connection and separation operation.
    Type: Application
    Filed: December 25, 2009
    Publication date: October 18, 2012
    Inventors: Jiro Nozaki, Shunji Akashi
  • Publication number: 20120011684
    Abstract: A readily burstable slide fastener 1 for an inflatable device, such as a lifejacket 101?, comprises a first stringer 3, a second stringer 5 and a slider 19 slidably mounted on the second stringer 5. At a weakened region 23 along the slide fastener 1 coupling elements 15 are omitted from each of the stringers 3, 5 so that when a bursting force is applied to this region 23 the coupling elements 15 adjacent thereto are disengaged. Coupling elements 15 are omitted from the top of the first stringer 3 so that when the slider 19 is at the top of the coupling elements 15 of the second stringer 5, the first stringer 3 can disengage from the slider 19. When the slide fastener 1 is fitted to an inflatable lifejacket 101?, the stringers 3, 5 are separated completely when the lifejacket 101? is inflated.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Applicant: YKK CORPORATION
    Inventors: Shigeyoshi Takasawa, Shunji Akashi, Mark Davies
  • Publication number: 20110041296
    Abstract: The present invention provides a slide fastener in which a broken part of a coupling element is not separated easily at the time of a forced cleavage when an airbag is expanded and having an excellent appearance. In the slide fastener (110) in which coupling elements (12, 113) each having a first leg portion and a second leg portion (72; 73) which are forked and extended from a coupling head (70) are sewed to a fastener tape (16, 17) thereof, a V-shaped cutout portion is formed at a single position in the range from a sewing line (84) on a first sewing portion (74) of the first leg portion (72) up to a sewing line (85) on a second sewing portion (75) via a coupling head (70) so as to form a vulnerable portion (80) whose breaking resistance is weakened. Consequently, even if an excessive lateral pulling force is applied to the slide fastener (110), so that the coupling element (12) is broken at the vulnerable portion (80), a broken part of the coupling element (12) is held on the fastener tape (16, 17).
    Type: Application
    Filed: December 11, 2008
    Publication date: February 24, 2011
    Applicant: YKK Corporation
    Inventors: Kenji Dono, Shunji Akashi, Hiroshi Ishisaka, Naoyuki Himi
  • Publication number: 20110000053
    Abstract: The present invention provides a slide fastener which withstands a predetermined lateral pulling force in a usual usage and is cloven when an excessive lateral pulling force is applied at the time of airbag inflation, wherein the slide fastener in which a plurality of attachment leg portions of coupling teeth, on each of which a coupling head formed to have a relatively large width and the attachment leg portions extending from the coupling head are formed, are attached on a coupling tooth attaching portion of each of a pair of fastener tapes on right and left with a predetermined pitch along a tape longitudinal direction is configured to satisfy a relationship 0.4?(2×H?P)/P?0.1 between a summit height H [mm] of the coupling head formed to have a relatively large width and a pitch P [mm].
    Type: Application
    Filed: March 26, 2008
    Publication date: January 6, 2011
    Applicant: YKK Corporation
    Inventors: Kenji Dono, Shunji Akashi, Hiroshi Ishisaka, Naoyuki Himi
  • Patent number: 7533451
    Abstract: A slider (1) for a slide fastener comprises a slider body portion (7), a latchportion (3) and a crown portion (5). The crown portion (5) is disposed on the upper side (85) of the slider body portion (7) and the latch portion (3) is disposed on the underneath side (87) of the slider body portion (7). The latch portion (3) comprises a latching member (35) and a receiving portion (37) which engage with a receiving portion (37) and latching member (35) respectively on a second co-operating slider (2), to releasably latch the first (1) and second (2) sliders together.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: May 19, 2009
    Assignee: YKK Corporation
    Inventors: Shunji Akashi, Shigeyoshi Takasawa, Morimasa Yoneoka
  • Publication number: 20090049658
    Abstract: A readily burstable slide fastener 1 for an inflatable device, such as a lifejacket 101?, comprises a first stringer 3, a second stringer 5 and a slider 19 slidably mounted on the second stringer 5. At a weakened region 23 along the slide fastener 1 coupling elements 15 are omitted from each of the stringers 3, 5 so that when a bursting force is applied to this region 23 the coupling elements 15 adjacent thereto are disengaged. Coupling elements 15 are omitted from the top of the first stringer 3 so that when the slider 19 is at the top of the coupling elements 15 of the second stringer 5, the first stringer 3 can disengage from the slider 19. When the slide fastener 1 is fitted to an inflatable lifejacket 101?, the stringers 3, 5 are separated completely when the lifejacket 101? is inflated.
    Type: Application
    Filed: March 31, 2006
    Publication date: February 26, 2009
    Applicant: YKK Corporation
    Inventors: Shigeyoshi Takasawa, Shunji Akashi, Mark Davies
  • Patent number: 7337508
    Abstract: In a zip fastener the elements (10) on one tape have a head which engages a shoulder (20) of an opposed element to limit out of plane movement. A small number of elements (30) have a head (38) which bears on a shoulder 46 when twisted in one direction but passes the shoulder (46) when twisted in the opposite direction to allow partial separation of the elements to create a point of weakness. The coupled elements can be peeled apart when sufficient pressure is applied to one side of the tape at the point of weakness, but the elements resist twisting when pressure is applied to the opposite side.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: March 4, 2008
    Assignee: YKK Corporation
    Inventors: Shigeyoshi Takasawa, Mark Davies, Shunji Akashi
  • Publication number: 20070022579
    Abstract: A slider (1) for a slide fastener comprises a slider body portion (7), a latch portion (3) and a crown portion (5). The crown portion (5) is disposed on the upper side (85) of the slider body portion (7) and the latch portion (3) is disposed on the underneath side (87) of the slider body portion (7). The latch portion (3) comprises a latching member (35) and a receiving portion (37) which engage with a receiving portion (37) and latching member (35) respectively on a second co-operating slider (2), to releasably latch the first (1) and second (2) sliders together.
    Type: Application
    Filed: March 15, 2004
    Publication date: February 1, 2007
    Inventors: Shunji Akashi, Shigeyoshi Takasawa, Morimasa Yoneoka
  • Publication number: 20060000065
    Abstract: In a zip fastener the elements (10) on one tape have a head which engages a shoulder (20) of an opposed element to limit out of plane movement. A small number of elements (30) have a head (38) which bears on a shoulder 46 when twisted in one direction but passes the shoulder (46) when twisted in the opposite direction to allow partial separation of the elements to create a point of weakness. The coupled elements can be peeled apart when sufficient pressure is applied to one side of the tape at the point of weakness, but the elements resist twisting when pressure is applied to the opposite side.
    Type: Application
    Filed: June 24, 2005
    Publication date: January 5, 2006
    Inventors: Shigeyoshi Takasawa, Mark Davies, Shunji Akashi
  • Patent number: D643778
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: August 23, 2011
    Assignee: YKK Corporation
    Inventors: Masamichi Hasegawa, Ryo Mikuma, Shunji Akashi
  • Patent number: D648246
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: November 8, 2011
    Assignee: YKK Corporation
    Inventors: Masamichi Hasegawa, Ryo Mikuma, Shunji Akashi