Patents by Inventor Kan Komiya
Kan Komiya 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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Publication number: 20220332927Abstract: A display device that includes a display element including a light source, and a surface film disposed so as to overlap with the display element and including a thermoplastic elastomer composition, the thermoplastic elastomer composition satisfying conditions (1) and (2) below, and the surface film satisfying conditions (3) and (4) below: (1) The melt flow rate (ASTM D1238, 230° C., 2.16 kg load; MFR) is not less than 30 g/10 min. (2) The type A hardness (momentary value) measured by a method in accordance with JIS K6253 is 60 to 90. (3) The thickness is not less than 300 ?m and not more than 2 mm. (4) The total light transmittance measured by a method in accordance with JIS K7361 is 3 to 60%.Type: ApplicationFiled: September 14, 2020Publication date: October 20, 2022Applicant: MITSUI CHEMICALS, INC.Inventors: Hayato KURITA, Kan KOMIYA
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Patent number: 9606465Abstract: Provided are a propylene-based polymer useful for providing a toner that is excellent in offset resistance, can be fixed by using a low-temperature heating element and hardly has stickiness even after stored for a long period of time; and a toner including said propylene-based polymer. The present invention is directed to a propylene/?-olefin copolymer (A) which includes 60 to 90 mol % of structural units derived from propylene (a) and 10 to 40 mol % of structural units derived from ?-olefins having 4 or more carbon atom (b) wherein (a)+(b)=100 mol % and which satisfies: (i) a weight average molecular weight (Mw) as measured by GPC of 3,000 to 40,000; (ii) a melting point (Tm) as measured by DSC of 60 to 90° C.; and (iii) a half width of a crystalline melting point peak as measured by DSC of 1 to 20° C.Type: GrantFiled: March 22, 2013Date of Patent: March 28, 2017Assignee: MITSUI CHEMICALS, INC.Inventors: Kuniaki Kawabe, Hirotaka Kanaya, Toshiyuki Ito, Kan Komiya
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Patent number: 9153757Abstract: The purpose of the present invention is to provide a thermoplastic resin composition for a reflective material which has excellent mechanical strength, excellent heat resistance, excellent high reflectance, and excellent moldability, and which makes it possible to obtain a reflective plate with little decline in reflectance caused by heating. A first embodiment of this thermoplastic resin composition for a reflective material includes: a polyester resin (A) that has a melting point or glass transition temperature of 250° C. or higher and includes an alicyclic hydrocarbon structure; a thermoplastic resin (B) that has a polyolefin backbone and a functional group; a white pigment (C); and an inorganic filler (D); the thermoplastic resin (B) either including 0.1 to 1.8 wt % of a functional group unit (B1) that further includes a heteroatom, or further including an aromatic hydrocarbon structure (B2), and the limiting viscosity [?] being 0.04 to 1.0 dl/g.Type: GrantFiled: July 31, 2012Date of Patent: October 6, 2015Assignee: MITSUI CHEMICALS, INC.Inventors: Hideto Ogasawara, Takashi Hama, Kuniaki Kawabe, Hirotaka Kanaya, Nobuhiro Takizawa, Akinori Amano, Hiroki Ebata, Kan Komiya
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Publication number: 20150056548Abstract: Provided are a propylene-based polymer useful for providing a toner that is excellent in offset resistance, can be fixed by using a low-temperature heating element and hardly has stickiness even after stored for a long period of time; and a toner including said propylene-based polymer. The present invention is directed to a propylene/?-olefin copolymer (A) which includes 60 to 90 mol % of structural units derived from propylene (a) and 10 to 40 mol % of structural units derived from ?-olefins having 4 or more carbon atom (b) wherein (a)+(b)=100 mol % and which satisfies: (i) a weight average molecular weight (Mw) as measured by GPC of 3,000 to 40, 000; (ii) a melting point (Tm) as measured by DSC of 60 to 90° C.; and (iii) a half width of a crystalline melting point peak as measured by DSC of 1 to 20° C.Type: ApplicationFiled: March 22, 2013Publication date: February 26, 2015Applicant: Mitsui Chemicals, Inc.Inventors: Kuniaki Kawabe, Hirotaka Kanaya, Toshiyuki Ito, Kan Komiya
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Publication number: 20140167091Abstract: The purpose of the present invention is to provide a thermoplastic resin composition for a reflective material which has excellent mechanical strength, excellent heat resistance, excellent high reflectance, and excellent moldability, and which makes it possible to obtain a reflective plate with little decline in reflectance caused by heating. A first embodiment of this thermoplastic resin composition for a reflective material includes: a polyester resin (A) that has a melting point or glass transition temperature of 250° C. or higher and includes an alicyclic hydrocarbon structure; a thermoplastic resin (B) that has a polyolefin backbone and a functional group; a white pigment (C); and an inorganic filler (D); the thermoplastic resin (B) either including 0.1 to 1.8 wt % of a functional group unit (B1) that further includes a heteroatom, or further including an aromatic hydrocarbon structure (B2), and the limiting viscosity [?] being 0.04 to 1.0 dl/g.Type: ApplicationFiled: July 31, 2012Publication date: June 19, 2014Applicant: Mitsui Chemicals, Inc.Inventors: Hideto Ogasawara, Takashi Hama, Kuniaki Kawabe, Hirotaka Kanaya, Nobuhiro Takizawa, Akinori Amano, Hiroki Ebata, Kan Komiya
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Patent number: 8617706Abstract: First pellets according to the present invention is characterized by satisfying all of the following requirements (Z), (1), (2), and (3): (Z) the pellet comprises a polymer (A) having an elastic modulus in tension of 100 MPa or less, (1) the pellets have an average weight per 30 pellets in the range of 0.80 to 2.00 g; (2) the pellets have a particle size distribution obtained by sieving in which pellets providing a maximum weight fraction account for 90 to 100% of the pellets; and (3) the pellets have a Lave/Dave value in the range of 1.00 to 1.70. Second pellets according to the present invention is characterized by satisfying the requirements of the (Z) and the following (4): (4) the pellets have a blocking force of 35 N or less that is measured after the pellets are left under a load at 35° C. for 24 hours and further at ?10° C. for 7 days.Type: GrantFiled: August 6, 2007Date of Patent: December 31, 2013Assignee: Mitsui Chemicals, Inc.Inventors: Kan Komiya, Tetsuya Nakamura
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Patent number: 8609769Abstract: An object of the present invention is to provide resin compositions which have excellent tensile strength, impact resistance and appearance without deterioration in properties inherent to general-purpose engineering plastics and propylene resins and to provide uses thereof. The resin compositions of the present invention contain 20 to 80 wt % of a general-purpose engineering plastic (A), 10 to 50 wt % of a polypropylene resin (B) and 1 to 30 wt % of a modified propylene resin (C), and the modified propylene resin (C) is obtained by modifying a resin composition (C-3) which includes 0 to 40 wt % of a polypropylene (C-1) having a melting point of not less than 120° C., and 60 to 100 wt % of a propylene/C2 or C4-10 ?-olefin copolymer (C-2) having a melting point (Tm) of less than 120° C. or not showing a melting point peak in DSC.Type: GrantFiled: March 24, 2009Date of Patent: December 17, 2013Assignee: Mitsui Chemicals, Inc.Inventor: Kan Komiya
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Publication number: 20130041080Abstract: There is provided a thermoplastic polymer composition excellent in the balance among mechanical strength, elongation at break, flexibility and heat resistance, and an article including the composition, and an electric wire and electric cable having an insulator and/or a sheath including the composition. The thermoplastic polymer composition includes 1 to 350 parts by mass of a filler (D) with respect to 100 parts by mass of polymer components that comprise 50 to 90% by mass of an ethylene/unsaturated ester copolymer (A); 1 to 40% by mass of a propylene-based polymer (B) having a melting point as measured by differential scanning calorimetry (DSC) of from 120 to 170° C.; and 1 to 49% by mass of a propylene-based polymer (C) having a melting point as measured by differential scanning calorimetry (DSC) of lower than 120° C. or not being observed, provided that the total amount of (A), (B) and (C) is 100% by mass.Type: ApplicationFiled: April 19, 2011Publication date: February 14, 2013Inventors: Nozomi Kamiya, Kiminori Noda, Kan Komiya, Takayuki Kuroki, Hiroto Yasui
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Publication number: 20110021706Abstract: An object of the present invention is to provide resin compositions which have excellent tensile strength, impact resistance and appearance without deterioration in properties inherent to general-purpose engineering plastics and propylene resins and to provide uses thereof. The resin compositions of the present invention contain 20 to 80 wt % of a general-purpose engineering plastic (A), 10 to 50 wt % of a polypropylene resin (B) and 1 to 30 wt % of a modified propylene resin (C) , and the modified propylene resin (C) is obtained by modifying a resin composition (C-3) which includes 0 to 40 wt % of a polypropylene (C-1) having a melting point of not less than 120° C., and 60 to 100 wt % of a propylene/C2 or C4-10 ?-olefin copolymer (C-2) having a melting point (Tm) of less than 120° C. or not showing a melting point peak in DSC.Type: ApplicationFiled: March 24, 2009Publication date: January 27, 2011Inventor: Kan KOMIYA
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Publication number: 20090321300Abstract: First pellets according to the present invention is characterized by satisfying all of the following requirements (Z), (1), (2), and (3): (Z) the pellet comprises a polymer (A) having an elastic modulus in tension of 100 MPa or less, (1) the pellets have an average weight per 30 pellets in the range of 0.80 to 2.00 g; (2) the pellets have a particle size distribution obtained by sieving in which pellets providing a maximum weight fraction account for 90 to 100% of the pellets; and (3) the pellets have a Lave/Dave value in the range of 1.00 to 1.70. Second pellets according to the present invention is characterized by satisfying the requirements of the (Z) and the following (4): (4) the pellets have a blocking force of 35 N or less that is measured after the pellets are left under a load at 35° C. for 24 hours and further at ?10° C. for 7 days.Type: ApplicationFiled: August 6, 2007Publication date: December 31, 2009Applicant: MITSUI CHEMICALS, INC.Inventors: Kan Komiya, Tetsuya Nakamura