Patents by Inventor Koji Kakigami
Koji Kakigami 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: 11370064Abstract: A light-absorbing layer and a bonding layer are layered on a first side of each of a belt-shaped male base portion integrated with a male portion and a female base portion integrated with a female portion on a side of the male and female base portions opposite the first side. The light-absorbing layer contains a light-absorbing material having a wavelength absorption range from 800 nm to 1200 nm to absorb a laser beam of the range. The bonding layer contains a low-melting-point resin in a form of a metallocene linear low-density polyethylene having a melting point ranging from 60 degrees C. to 120 degrees C. When the zipper tape is bonded to the base film, the laser beam is applied to heat the light-absorbing layer to melt the bonding layer. The melted bonding layer is pressure-bonded to the base film. The base film can be bonded without causing thermal degradation.Type: GrantFiled: April 7, 2016Date of Patent: June 28, 2022Assignee: IDEMITSU UNITECH CO., LTD.Inventors: Ryo Katada, Shuichi Goto, Koji Kakigami, Yoshinori Namba
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Publication number: 20180093352Abstract: A light-absorbing layer and a bonding layer are layered on a first side of each of a belt-shaped male base portion integrated with a male portion and a female base portion integrated with a female portion on a side of the male and female base portions opposite the first side. The light-absorbing layer contains a light-absorbing material having a wavelength absorption range from 800 nm to 1200 nm to absorb a laser beam of the range. The bonding layer contains a low-melting-point resin in a form of a metallocene linear low-density polyethylene having a melting point ranging from 60 degrees C. to 120 degrees C. When the zipper tape is bonded to the base film, the laser beam is applied to heat the light-absorbing layer to melt the bonding layer. The melted bonding layer is pressure-bonded to the base film. The base film can be bonded without causing thermal degradation.Type: ApplicationFiled: April 7, 2016Publication date: April 5, 2018Applicant: IDEMITSU UNITECH CO., LTD.Inventors: Ryo KATADA, Shuichi GOTO, Koji KAKIGAMI, Yoshinori NAMBA
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Publication number: 20090215973Abstract: A propylenic polymer according to the present invention or a composition thereof have an excellent melt flowability and contains a less amount of stickiness-causing components, and also has a low modulus and is pliable, and is capable of providing a transparent molded article, thus being useful as a substitute for a pliable vinyl chloride resin. In addition, a molded article made therefrom exhibits an excellent heat seal performance at a low temperature, and is excellent in terms of transparency and rigidity. Specifically, it has an isotactic pentad fraction (mmmm), which indicates a stereoregularity, of 30 to 80%, a molecular weight distribution (Mw/Mn) of 3.5 or less and an intrinsic viscosity [?] of 0.8 to 5 dl/g.Type: ApplicationFiled: April 23, 2009Publication date: August 27, 2009Applicant: Idemitsu Kosan Co., Ltd.Inventors: Yutaka Minami, Masato Kijima, Takuji Okamoto, Yasushi Seta, Yasuhiro Mogi, Tsuyoshi Ota, Hideo Funabashi, Takashi Kashiwamura, Noriyuki Tani, Masami Kanamaru, Koji Kakigami
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Patent number: 7544758Abstract: A propylenic polymer according to the present invention or a composition thereof have an excellent melt flowability and contains a less amount of stickiness-causing components, and also has a low modulus and is pliable, and is capable of providing a transparent molded article, thus being useful as a substitute for a pliable vinyl chloride resin. In addition, a molded article made therefrom exhibits an excellent heat seal performance at a low temperature, and is excellent in terms of transparency and rigidity. Specifically, it has an isotactic pentad fraction (mmmm), which indicates a stereoregulariry, of 30 to 80%, a molecular weight distribution (Mw/Mn) of 3.5 or less and an intrinsic viscosity [?] of 0.8 to 5 dl/g.Type: GrantFiled: September 1, 2006Date of Patent: June 9, 2009Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yutaka Minami, Masato Kijima, Takuji Okamoto, Yasushi Seta, Yasuhiro Mogi, Tsuyoshi Ota, Hideo Funabashi, Takashi Kashiwamura, Noriyuki Tani, Masami Kanamaru, Koji Kakigami
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Patent number: 7320950Abstract: The propylene polymer of the present invention satisfies (1) a 25° C. hexane soluble content (H25) of 0-80 wt %; and (2) either no melting temperature (Tm) measurable by differential scanning calorimetry (DSC), or a melting temperature (Tm) satisfying, if measurable by DSC, the following relationship: ?H?3×(Tm?120) wherein ?H is a melting endotherm (J/g). The propylene homopolymer of the present invention satisfies (1) a meso pentad fraction (mmmm) of 30-60 mol %; (2) a racemic pentad fraction (rrrr) satisfying the following relationship: [rrrr/(1?mmmm)]?0.1; (3) a fraction (W25) eluted at a temperatures up to 25° C. by temperature-programmed chromatography, of from 20-100 wt %; and, (4) a pentad fraction (rmrm) of more than 2.5 mol %. The propylene copolymer of the present invention satisfies (1) a stereoregularity index (P) of 55-90 mol % as determined by 13C-NMR measurement; and (2) a fraction (W25) eluted at a temperatures up to 25° C. by temperature-programmed chromatography, of from 20-100 wt %.Type: GrantFiled: October 27, 2006Date of Patent: January 22, 2008Assignee: Idemitsu Kosan Co., Ltd,Inventors: Takuji Okamoto, Takashi Kashiwamura, Noriyuki Tani, Yutaka Minami, Masami Kanamaru, Koji Kakigami
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Patent number: 7199202Abstract: A propylenic polymer according to the present invention or a composition thereof have an excellent melt flowability and contains a less amount of stickiness-causing components, and also has a low modulus and is pliable, and is capable of providing a transparent molded article, thus being useful as a substitute for a pliable vinyl chloride resin. In addition, a molded article made therefrom exhibits an excellent heat seal performance at a low temperature, and is excellent in terms of transparency and rigidity. Specifically, it has an isotactic pentad fraction (mmmm), which indicates a stereoregulariry, of 30 to 80%, a molecular weight distribution (Mw/Mn) of 3.5 or less and an intrinsic viscosity [?] of 0.8 to 5 dl/g.Type: GrantFiled: May 28, 2004Date of Patent: April 3, 2007Assignee: Idemitsu Kosan Co. Ltd.Inventors: Yutaka Minami, Masato Kijima, Takuji Okamoto, Yasushi Seta, Yasuhiro Mogi, Tsuyoshi Ota, Hideo Funabashi, Takashi Kashiwamura, Noriyuki Tani, Masami Kanamaru, Koji Kakigami
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Publication number: 20070043192Abstract: The propylene polymer of the present invention satisfies (1) a 25° C. hexane soluble content (H25) of 0-80 wt %; and (2) either no melting temperature (Tm) measurable by differential scanning calorimetry (DSC), or a melting temperature (Tm) satisfying, if measurable by DSC, the following relationship: ?H?3×(Tm?120) wherein ?H is a melting endotherm (J/g). The propylene homopolymer of the present invention satisfies (1) a meso pentad fraction (mmmm) of 30-60 mol %; (2) a racemic pentad fraction (rrrr) satisfying the following relationship: [rrrr/(1?mmmm)]?0.1; (3) a fraction (W25) eluted at a temperatures up to 25° C. by temperature-programmed chromatography, of from 20-100 wt %; and, (4) a pentad fraction (rmrm) of more than 2.5 mol %. The propylene copolymer of the present invention satisfies (1) a stereoregularity index (P) of 55-90 mol % as determined by 13C-NMR measurement; and (2) a fraction (W25) eluted at a temperatures up to 25° C. by temperature-programmed chromatography, of from 20-100 wt %.Type: ApplicationFiled: October 27, 2006Publication date: February 22, 2007Applicant: Idemitsu Kosan Co., Ltd.Inventors: Takuji Okamoto, Takashi Kashiwamura, Noriyuki Tani, Yutaka Minami, Masami Kanamaru, Koji Kakigami
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Publication number: 20060293471Abstract: A propylenic polymer according to the present invention or a composition thereof have an excellent melt flowability and contains a less amount of stickiness-causing components, and also has a low modulus and is pliable, and is capable of providing a transparent molded article, thus being useful as a substitute for a pliable vinyl chloride resin. In addition, a molded article made therefrom exhibits an excellent heat seal performance at a low temperature, and is excellent in terms of transparency and rigidity. Specifically, it has an isotactic pentad fraction (mmmm), which indicates a stereoregulariry, of 30 to 80%, a molecular weight distribution (Mw/Mn) of 3.5 or less and an intrinsic viscosity [?] of 0.8 to 5 dl/g.Type: ApplicationFiled: September 1, 2006Publication date: December 28, 2006Applicant: Idemitsu Kosan Co., Ltd.Inventors: Yutaka Minami, Masato Kijima, Takuji Okamoto, Yasushi Seta, Yasuhiro Mogi, Tsuyoshi Ota, Hideo Funabashi, Takashi Kashiwamura, Noriyuki Tani, Masami Kanamaru, Koji Kakigami
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Patent number: 7067604Abstract: 1-butene based polymer satisfying following requirements (1?) to (4?) provides formed product having low stickiness, superior flexibility and transparency. (1?) Crystalline resin having melting point (Tm?P), not observed or in the range of 0 to 100° C., wherein said melting point defined as the peak top of the peak observed in the highest temperature zone of the melting heat absorption curve obtained by heating a sample of said polymer at a rate of 10° C./minute using Differential Scanning Calorimeter (DSC), after melting said sample in advance at 190° for 5 minutes under nitrogen atmosphere, followed by cooling it to ?10° C. at a rate of 5° C./minutes, and keeping it at ?10° C. for 5 minutes. (2?) Stereoregularity index {(mmmm)/(mmrr+rmmr)} is at most 20. (3?) Molecular weight distribution (Mw/Mn) measured by Gel Permeation Chromatography (GPC) method is at most 4.0. (4?) Weight average molecular weight (Mw) measured by GPC method is in the range of 10,000 to 1,000,000.Type: GrantFiled: April 29, 2004Date of Patent: June 27, 2006Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yutaka Minami, Masami Kanamaru, Koji Kakigami, Hideo Funabashi
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Patent number: 6930160Abstract: 1-butene based polymer satisfying following requirements (1?) to (4?) provides formed product having low stickiness, superior flexibility and transparency. (1?) Crystalline resin having melting point (Tm?P), not observed or in the range of 0 to 100° C., wherein said melting point defined as the peak top of the peak observed in the highest temperature zone of the melting heat absorption curve obtained by heating a sample of said polymer at a rate of 10° C./minute using Differential Scanning Calorimeter (DSC), after melting said sample in advance at 190° for 5 minutes under nitrogen atmosphere, followed by cooling it to ?10° C. at a rate of 5° C./minutes, and keeping it at ?10° C. for 5 minutes. (2?) Stereoregularity index {(mmmm)/(mmrr+rmmr)} is at most 20. (3?) Molecular weight distribution (Mw/Mn) measured by Gel Permeation Chromatography (GPC) method is at most 4.0. (4?) Weight average molecular weight (Mw) measured by GPC method is in the range of 10,000 to 1,000,000.Type: GrantFiled: August 21, 2001Date of Patent: August 16, 2005Assignee: Idemitsu Petrochemical Co. Ltd.Inventors: Yutaka Minami, Masami Kanamaru, Koji Kakigami, Hideo Funabashi
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Publication number: 20050043495Abstract: A propylenic polymer according to the present invention or a composition thereof have an excellent melt flowability and contains a less amount of stickiness-causing components, and also has a low modulus and is pliable, and is capable of providing a transparent molded article, thus being useful as a substitute for a pliable vinyl chloride resin. In addition, a molded article made therefrom exhibits an excellent heat seal performance at a low temperature, and is excellent in terms of transparency and rigidity. Specifically, it has an isotactic pentad fraction (mmmm), which indicates a stereoregulariry, of 30 to 80%, a molecular weight distribution (Mw/Mn) of 3.5 or less and an intrinsic viscosity [?] of 0.8 to 5 dl/g.Type: ApplicationFiled: May 28, 2004Publication date: February 24, 2005Applicant: IDEMITSU PETROCHEMICAL CO., LTD.Inventors: Yutaka Minami, Masato Kijima, Takuji Okamoto, Yasushi Seta, Yasuhiro Mogi, Tsuyoshi Ota, Hideo Funabashi, Takashi Kashiwamura, Noriyuki Tani, Masami Kanamaru, Koji Kakigami
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Publication number: 20040204552Abstract: 1-butene based polymer satisfying following requirements (1″) to (4″) provides formed product having low stickiness, superior flexibility and transparency.Type: ApplicationFiled: April 29, 2004Publication date: October 14, 2004Applicant: IDEMITSU PETROCHEMICAL CO., LTD.Inventors: Yutaka Minami, Masami Kanamaru, Koji Kakigami, Hideo Funabashi
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Patent number: 6800706Abstract: The propylene polymer of the invention is transparent and has good low-temperature heat-sealability and scratch resistance, and is favorable to wrapping and packaging films. (1) The polymer has a melting point, Tm (° C.), measured through differential scanning calorimetry, of 110≦Tm≦140; (2) its heat of fusion &Dgr;H (J/g) and melting point Tm (° C.) satisfy &Dgr;H≧0.45×Tm+22; (3) the half-value width Th (° C.) of the peak top of its elution curve obtained in programmed-temperature fractionation is Th≦5; and (4) its intrinsic viscosity [&eegr;] (dl/g) measured in a solvent of tetralin at 135° C. falls between 0.5 and 5.Type: GrantFiled: February 26, 2001Date of Patent: October 5, 2004Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Masami Kanamaru, Yutaka Minami, Koji Kakigami, Hideo Funabashi
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Patent number: 6734270Abstract: A polypropylene-based calendered or injection-molded article satisfying the requirements of (1) having a tensile modulus TM of 5 MPa or higher and (2) having, when measured by a differential scanning calorimeter (DSC), no melting point or a melting point Tm (° C.) satisfying the formula: TM≧5×Tm−450, is less tacky and excellent in flexibility and transparency. Such a polypropylene-based calendered or injection-molded article is produced from a propylene polymer satisfying the requirements of (1) having a component soluble in a 25° C. hexane in a content H25 of 0 to 80% by weight; (2) having, when measured by a differential scanning calorimeter (DSC), no melting point or a melting point Tm (° C.) satisfying the formula: &Dgr;H≧6×(Tm−140) wherein &Dgr;H is a melting endotherm (J/g); and (3) having an intrinsic viscosity [&eegr;] of 1 to 3 dl/g as measured at 135° C. in tetralin.Type: GrantFiled: April 5, 2002Date of Patent: May 11, 2004Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Yutaka Minami, Masami Kanamaru, Koji Kakigami, Atsuhiko Ubara
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Publication number: 20030069320Abstract: 1-butene based polymer satisfying following requirements (1″) to (4″) provides formed product having low stickiness, superior flexibility and transparency.Type: ApplicationFiled: April 16, 2002Publication date: April 10, 2003Inventors: Yutaka Minami, Masami Kanamaru, Koji Kakigami, Hideo Funabashi