Patents by Inventor Masanori Hirasawa
Masanori Hirasawa 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).
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Patent number: 11029201Abstract: The disclosure provides respective detection devices of a sensor array that detect infrared light and convert the infrared light into a DC component electrical signal.Type: GrantFiled: February 21, 2018Date of Patent: June 8, 2021Assignee: Fukada Kogyo Co., Ltd.Inventors: Ryo Ishikawa, Takeshi Takashima, Kenji Kido, Masanori Hirasawa, Yuichiro Hanai
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Publication number: 20200141796Abstract: The disclosure provides respective detection devices of a sensor array that detect infrared light and convert the infrared light into a DC component electrical signal.Type: ApplicationFiled: February 21, 2018Publication date: May 7, 2020Applicant: Fukada Kogyo Co., Ltd.Inventors: Ryo Ishikawa, Takeshi Takashima, Kenji Kido, Masanori Hirasawa, Yuichiro Hanai
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Patent number: 6756593Abstract: A flame sensor comprises a filter which blocks light in an infrared ray region, a filter which blocks stray light, a narrow band filter which passes only light of a band corresponding to a line spectrum of carbonic acid gas resonance radiation generated by a flame, and a broad band filter which passes light of a band which is broader than the band corresponding to the line spectrum, and a plurality of light reception elements which convert lights passing through the narrow and broad band filters to electric signals, the flame sensor judging flame when a difference between intensities of the electric signals is equal to or more than a predetermined value and a ratio between the intensities of the electric signals is within a predetermined range, by assuming that transmission band widths of the narrow and broad band filters are equal, is provided.Type: GrantFiled: March 26, 2002Date of Patent: June 29, 2004Assignee: Kokusai Gijutsu Kaihatsu Kabushiki KaishaInventors: Shunsaku Nakauchi, Masanori Hirasawa
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Patent number: 6677590Abstract: A flame sensor capable of being easily produced and accurately detecting a flame includes a broadband filter having a transmission band inclusive of a line spectrum of resonance radiation of a carbonic acid gas, a narrowband filter permitting the passage of only the line spectrum of the resonance radiation of the carbonic acid gas and having its band center not coincident with that of the broadband filter, a light reception device, amplifiers, a circuit for computing the difference of mean intensities of spectrums transmitting through the filters and passing through the amplifiers, and a circuit for raising an alarm when the output of the computation circuit exceeds a predetermined value.Type: GrantFiled: September 6, 2001Date of Patent: January 13, 2004Assignee: Kokusai Gijutsu Kaihatsu KabushikiInventors: Shunsaku Nakauchi, Masanori Hirasawa
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Publication number: 20030102434Abstract: A flame sensor comprises a filter which blocks light in an infrared ray region, a filter which blocks stray light, a narrow band filter which passes only light of a band corresponding to a line spectrum of carbonic acid gas resonance radiation generated by a flame, and a broad band filter which passes light of a band which is broader than the band corresponding to the line spectrum, and a plurality of light reception elements which convert lights passing through the narrow and broad band filters to electric signals, the flame sensor judging flame when a difference between intensities of the electric signals is equal to or more than a predetermined value and a ratio between the intensities of the electric signals is within a predetermined range, by assuming that transmission band widths of the narrow and broad band filters are equal, is provided.Type: ApplicationFiled: March 26, 2002Publication date: June 5, 2003Inventors: Shunsaku Nakauchi, Masanori Hirasawa
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Patent number: 6548165Abstract: A reinforcing tape for a slide fastener comprises a polyamide elastomer film manifesting a modulus of elasticity in bending in the range of 6,000 to 9,000 kg/cm2 and an adhesive layer. In a preferred embodiment, a polyester hot-melt adhesive is used for the adhesive layer. Preferably an intermediate layer having a thickness thinner than the thickness of the polyamide elastomer film and that of the adhesive layer is interposed between the polyamide elastomer film and the adhesive layer. In this case, a polyester anchor coat agent is used for the intermediate layer.Type: GrantFiled: October 22, 2001Date of Patent: April 15, 2003Assignee: YKK CorporationInventors: Yoshimichi Yamakita, Mutsuo Hirota, Kozo Watanabe, Masanori Hirasawa
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Publication number: 20030042420Abstract: A flame sensor capable of being easily produced and accurately detecting a flame includes a broadband filter having a transmission band inclusive of a line spectrum of resonance radiation of a carbonic acid gas, a narrowband filter permitting the passage of only the line spectrum of the resonance radiation of the carbonic acid gas and having its band center not coincident with that of the broadband filter, a light reception device, amplifiers, a circuit for computing the difference of mean intensities of spectrums transmitting through the filters and passing through the amplifiers, and a circuit for raising an alarm when the output of the computation circuit exceeds a predetermined value.Type: ApplicationFiled: September 6, 2001Publication date: March 6, 2003Inventors: Shunsaku Nakauchi, Masanori Hirasawa
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Publication number: 20020081427Abstract: A reinforcing tape for a slide fastener comprises a polyamide elastomer film manifesting a modulus of elasticity in bending in the range of 6,000 to 9,000 kg/cm2 and an adhesive layer. In a preferred embodiment, a polyester hot-melt adhesive is used for the adhesive layer. Preferably an intermediate layer having a thickness thinner than the thickness of the polyamide elastomer film and that of the adhesive layer is interposed between the polyamide elastomer film and the adhesive layer. In this case, a polyester anchor coat agent is used for the intermediate layer.Type: ApplicationFiled: October 22, 2001Publication date: June 27, 2002Applicant: YKK CORPORATIONInventors: Yoshimichi Yamakita, Mutsuo Hirota, Kuzo Watanabe, Masanori Hirasawa
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Patent number: 5728460Abstract: A slide fastener comprises a pair of dyed fastener tapes each having a row of coupling elements attached to the fastener tape along a longitudinal edge thereof and at least a pair of reinforcing tapes attached to a terminal part of each of the fastener tapes. The reinforcing tape comprising a transparent elastomer film and an adhesive layer superposed on the reverse side of the elastomer film is attached by welding or fusion bonding to the terminal part of the dyed fastener tape through the medium of the adhesive layer and has a knurled surface at the welded part.Type: GrantFiled: April 26, 1996Date of Patent: March 17, 1998Assignee: YKK CorporationInventors: Masanori Hirasawa, Osamu Fujii, Shigeru Funakawa, Toyoo Morita, Kazuki Kuse
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Patent number: 5500276Abstract: A slide fastener of synthetic resin which has regularly spaced elements formed and fixed to the edge of fastener tape by the injection molding of the molten mass of the synthetic resin is disclosed. The fastener tape is formed of polyethylene terephthalate and the elements of slide fastener are made of a polymer alloy of polybutylene terephthalate with polypropylene or polyethylene terephthalate.Type: GrantFiled: June 22, 1994Date of Patent: March 19, 1996Assignee: Yoshida Kogyo K.K.Inventors: Ryozo Sawada, Masanori Hirasawa, Yoshiharu Yamaguchi, Shigeru Funakawa, Masaru Kanayama
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Patent number: 5103540Abstract: An apparatus for gapping a stringer chain at predetermined intervals is disclosed, which comprises an anvil and a cutter cooperating therwith in cutting a length of coupling elements on a pair of support tapes. The cutter includes a vertically movable punch which is provided with a plurality of positioning prongs adapted to engage in between adjacent elements and hold the stringer chain firmly in place during gapping thereof.Type: GrantFiled: July 19, 1991Date of Patent: April 14, 1992Assignee: Yoshida Kogyo K.K.Inventor: Masanori Hirasawa