Patents by Inventor Takashi Hiruma

Takashi Hiruma 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).

  • Patent number: 9206312
    Abstract: A heat-shrinkable film having a layer made of a mixed resin containing a polylactic acid resin and a polyolefin resin as the main components, wherein the mass ratio of the polylactic acid resin and the polyolefin resin is 95/5 to 50/50, the polylactic acid resin is a copolymer of D-lactic acid and L-lactic acid or a mixed resin of the copolymer, the D/L ratio of D-lactic acid and L-lactic acid is 3/97 to 15/85 or 85/15 to 97/3, the storage elastic modulus of the polyolefin resin or the soft acrylic resin at 20° C. is ?100 MPa as measured at an oscillation frequency of 10 Hz and a strain of 0.1%, the film is stretched in at least one direction, and the heat shrinkage ratio of the film in the main shrinking direction is ?20% as measured after the film is immersed in 80° C. water for 10 seconds.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: December 8, 2015
    Assignee: MITSUBISHI PLASTICS, INC.
    Inventors: Takashi Hiruma, Takeyoshi Yamada
  • Patent number: 8962113
    Abstract: The present invention relates to a heat-shrinkable laminate film comprising a surface layer composed mainly of polyester resin, an intermediate layer composed mainly of styrene resin, and an adhesive layer composed mainly of adhesive resin, wherein heat shrinkage in the main shrink direction is at least 10% and less than 30% when the film is dipped in water of 70° C. for 10 seconds, and at least 30% and at most 70% when dipped in water of 80° C. for 10 seconds, or its tensile modulus of elasticity in a direction perpendicular to the main shrink direction is at least 1,200 MPa. The heat-shrinkable film has excellent film elasticity, shrink finishing quality, transparency when incorporated as recycled, natural shrinkage, and suppressed delamination, making it suitable for application in shrink wrapping, shrink bundling wrapping, shrink label, and a plastic container provided with a heat shrinkable film made of such a film.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: February 24, 2015
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Takeyoshi Yamada, Takashi Hiruma, Yukihiro Tanaka, Jun Takagi, Hideyasu Miyazaki
  • Patent number: 8470420
    Abstract: A heat-shrinkable film which is excellent in mechanical characteristics such as heat shrinkage characteristics, impact resistance, and transparency and in the finish of shrinkage and which is suitable for shrink packaging, shrink bundling, shrinkable labels, and so on. A film which is made from a mixed resin comprising as the main components either a polylactic acid resin (A) and a (meth)acrylic resin (B) or a polylactic acid resin (A) and a silicone/acrylic composite rubber (D) or has at least one layer made from the mixed resin and which exhibits a heat shrinkage percentage of 20% or above in the main shrinkage direction when dipped in water at 80° C. for 10 seconds.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: June 25, 2013
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Takashi Hiruma, Takeyoshi Yamada, You Miyashita, Kouichi Sawa, Kazuya Tanaka, Jun Takagi
  • Patent number: 8420193
    Abstract: A heat-shrinkable film having a layer made of a mixed resin containing a polylactic acid resin and a polyolefin resin as the main components, wherein the mass ratio of the polylactic acid resin and the polyolefin resin is 95/5 to 50/50, the polylactic acid resin is a copolymer of D-lactic acid and L-lactic acid or a mixed resin of the copolymer, the D/L ratio of D-lactic acid and L-lactic acid is 3/97 to 15/85 or 85/15 to 97/3, the storage elastic modulus of the polyolefin resin or the soft acrylic resin at 20° C. is ?100 MPa as measured at an oscillation frequency of 10 Hz and a strain of 0.1%, the film is stretched in at least one direction, and the heat shrinkage ratio of the film in the main shrinking direction is ?20% as measured after the film is immersed in 80° C. water for 10 seconds.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: April 16, 2013
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Takashi Hiruma, Takeyoshi Yamada, Takatoshi Muta
  • Patent number: 8197929
    Abstract: To obtain a reflection film that does not undergo yellowing or a reduction in reflectance with a lapse of time by using, has excellent deadfold properties, generates less calorific when incinerated, and is degradable by microorganisms when subjected to earth filling, and causes no problem of waste disposal, the reflection film includes an aliphatic polyester based resin as a base resin and fine powder filler. The reflection film has pores inside thereof at a porosity of 50% or less. Preferably, the fine powder filler includes titanium oxide.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: June 12, 2012
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Takayuki Watanabe, Takashi Hiruma, Kazunari Katsuhara, Miki Nishida, Jun Takagi
  • Patent number: 8137773
    Abstract: The present invention provides a polyolefin series heat-shrinkable film comprising a mixed resin mainly containing a polyolefin series resin (A), polylactic acid series resin (B), and a resin (C) facilitating compatibility with the resin (A) and the resin (B), or comprising at least one layer made of the mixed resin, wherein mass ratio of the resin (A) to the resin (B) is (A)/(B)=99/1 to 70/30; heat shrinkage ratio of the film at least in one direction when dipped in hot water at 80° C. for 10 seconds is 20% or more; and natural shrinkage ratio of the film when stored at 40° C. under 50% RH environment for 7 days is less than 10%. This polyolefin series heat-shrinkable film exhibits excellent heat-shrinkable property and shrink finishing quality, and inhibits natural shrinkage. This invention also provides a polyolefin series heat-shrinkable label and container on which the heat-shrinkable label is fitted.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: March 20, 2012
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Takashi Hiruma, Takeyoshi Yamada
  • Patent number: 7952737
    Abstract: A print process system includes a receiving section and an executing section. The receiving section receives (i) print data or reference information of the print data, (ii) an instruction of print process for the print data and (iii) process description data, which describes a series of processes performed after the print process, or reference information to the process description data. When the print process is executed according to the received instruction of the print process, the executing section executes a process based on the series of process instruction elements described in the process description data corresponding to the instruction of the print process.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: May 31, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Takashi Hiruma, Hajime Kajiyama, Tomonari Yamauchi
  • Publication number: 20100279091
    Abstract: A reflective film is provided, having excellent reflection capability and at the same time exhibiting excellent brightness, without yellowing and decreasing the light reflectivity over time. A reflective film is proposed, which is a reflective film provided with an A layer containing a resin composition A comprising an aliphatic polyester series resin or a polyolefin series resin, and a microparticulate filler, the content ratio of said microparticulate filler in said resin composition A being 10 to 80 percent in mass, and provided with a B layer as the outermost layer of the side of the face used for reflection, containing a resin composition B comprising an aliphatic polyester series resin and a microparticulate filler, the content ratio of said microparticulate filler in the resin composition B being greater than 0.1 percent in mass but less than 5 percent in mass, the gloss at 60° of the side of the face used for reflection being 50 to 90.
    Type: Application
    Filed: December 14, 2006
    Publication date: November 4, 2010
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Miki Nishida, Takashi Hiruma, Kazunari Katsuhara, Takayuki Watanabe, Jun Takagi
  • Patent number: 7754324
    Abstract: To obtain a reflection film that does not undergo yellowing or a reduction in reflectance with a lapse of time by using, has excellent deadfold properties, generates less calorific when incinerated, and is degradable by microorganisms when subjected to earth filling, and causes no problem of waste disposal, the reflection film includes an aliphatic polyester based resin as a base resin and fine powder filler. The reflection film has pores inside thereof at a porosity of 50% or less. Preferably, the fine powder filler includes titanium oxide.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: July 13, 2010
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Takayuki Watanabe, Takashi Hiruma, Kazunari Katsuhara, Miki Nishida, Jun Takagi
  • Publication number: 20100143623
    Abstract: The present invention provide a heat-shrinkable film consisting of a layer or comprising at least one layer, wherein the layer is made of a mixed resin containing a polylactic acid resin and a polyolefin resin as the main components, wherein mass ratio of the polylactic acid resin and the polyolefin resin is 95/5 to 50/50 by mass, the polylactic acid resin being a copolymer of D-lactic acid and L-lactic acid or a mixed resin of the copolymer, wherein D/L ratio of D-lactic acid and L-lactic acid is 3/97 to 15/85 or 85/15 to 97/3, the storage elastic modulus (E?) of the polyolefin resin or the soft acrylic resin at 20 degree C. being 100 MPa or less as measured at an oscillation frequency of 10 Hz and a strain of 0.1%, the film being stretched in at least one direction, and the heat shrinkage ratio of the film in the main shrinking direction being 20% or more as measured after the film is immersed in hot water of 80 degree C. for 10 seconds.
    Type: Application
    Filed: February 6, 2008
    Publication date: June 10, 2010
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Takashi Hiruma, Takeyoshi Yamada, Takatoshi Muta
  • Publication number: 20100104783
    Abstract: A resin composition used for a heat-shrinkable member: at least one plasticizer; and a polyphenylene sulfide resin (a), at least one tan ? peak existing within the temperature range between 65 and 95° C. as measured by dynamic viscoelasticity at an oscillation frequency of 10 Hz, a strain of 0.1%, and a temperature increase rate of 3° C./min.
    Type: Application
    Filed: March 14, 2008
    Publication date: April 29, 2010
    Applicant: Mitsubishi Plastics, Inc.
    Inventors: Asami Kitajima, Motoi Yamashita, Takashi Hiruma, Hirotsugu Fujita, Jun Takagi
  • Publication number: 20090263600
    Abstract: The present invention provides a high quality laminated sheet material prepared using as much materials of biological origin as possible in order to contribute to the prevention of deterioration of the environment and provide a reduction in the amount of exhaustible resources being consumed. The laminated sheet material of the present invention is characterized by having at least one first layer and at least two different kinds of layers selected from the group consisting of a second layer, a third layer and a fourth layer, wherein the first layer has a resin composition A which includes a polyester resin (a) containing 25% or more of a component of biological origin and a polyolefin resin (b); the second layer has as the main component the polyester resin (a) containing 25% or more of a component of biological origin; the third layer has as the main component the polyolefin resin (b); and the fourth layer has as the main component an adhesive resin (c).
    Type: Application
    Filed: July 17, 2007
    Publication date: October 22, 2009
    Applicant: Mitsubishi Plastics Inc.
    Inventors: Kazuhisa Miyashita, Takashi Hiruma, Maiko Suzuki, Takeyoshi Yamada, Kazuya Tanaka, Jun Takagi
  • Publication number: 20090202758
    Abstract: The present invention provides a heat-shrinkable laminated film having at least three layers including: a (I) layer; and two (II) layers respectively disposed on each surface of the (I) layer, the (I) layer being composed by a layer containing at least one polyolefin series resin as a main component and the (II) layer being composed by a layer containing at least one polylactic acid series resin as a main component, and the storage elastic modulus (E?) of the laminated film at 80° C. being 10 MPa or more and 1,000 MPa or less when dynamic viscoelasticity about a direction orthogonal to the film's main shrinking direction is measured under a condition of vibrational frequency at 10 Hz, strain at 0.1%. The film of the invention exhibits excellent shrink finishing quality, heat-shrinkage property at low temperature, and small natural shrinkage; thereby suitably used for shrinkable packing, shrinkable banding packing, shrinkable label and the like.
    Type: Application
    Filed: June 29, 2007
    Publication date: August 13, 2009
    Applicant: MITSUBISHI PLASTICS , INC.
    Inventors: Takashi Hiruma, Takeyoshi Yamada, Hiroyuki Tozaki, Kazuhisa Miyashita, Jun Takagi
  • Publication number: 20090082499
    Abstract: [Summary] [Problem] To provide a reflective film that has an excellent light reflectance, that hardly undergoes a decrease in light reflectance with time when in use. [Means for Solving] An aliphatic polyester-based resin reflective film formed by a resin composition containing an aliphatic polyester-based resin and a fine powder filler, wherein a yellowness index (YI-value) is less than 3.6. The fine powder filler is preferably at least one fine powder filler selected from the group of calcium carbonate, barium sulfate, titanium oxide and zinc oxide.
    Type: Application
    Filed: November 10, 2005
    Publication date: March 26, 2009
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Miki Nishida, Takayuki Watanabe, Takashi Hiruma, Kazunari Katsuhara, Jun Takagi
  • Publication number: 20090074998
    Abstract: The present invention provides a heat-shrinkable laminated film which exhibits excellent breakage resistance, stiffness and shrink finishing quality, and provides a molded product and heat-shrinkable label using the films, and a container. The heat-shrinkable laminated film is made of an A layer mainly constituted of a polyester series resin and a B layer mainly constituted of a polystyrene series resin, respectively used as front and back layers and an intermediate layer, in which a peak temperature of the loss elastic modulus (EA?) of a resin that constitutes the A layer exists at least one in the range of 50° C. or more and 90° C. or less; the storage elastic moduli (EA?) at 0° C. and 40° C. satisfy EA?(0)/EA?(40)?1.2, and the storage elastic moduli (EB?) at 50° C. and 90° C. of the resin that constitutes the B layer satisfy EB?(50)?1.5×108 Pa and EB?(90)?5.
    Type: Application
    Filed: November 11, 2005
    Publication date: March 19, 2009
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Takashi Hiruma, Takeyoshi Yamada, Yukihiro Tanaka, You Miyashita, Jun Takagi
  • Publication number: 20090074999
    Abstract: A heat-shrinkable film which is excellent in mechanical characteristics such as heat shrinkage characteristics, impact resistance, and transparency and in the finish of shrinkage and which is suitable for shrink packaging, shrink bundling, shrinkable labels, and so on. A film which is made from a mixed resin comprising as the main components either a polylactic acid resin (A) and a (meth)acrylic resin (B) or a polylactic acid resin (A) and a silicone/acrylic composite rubber (D) or has at least one layer made from the mixed resin and which exhibits a heat shrinkage percentage of 20% or above in the main shrinkage direction when dipped in water at 80° C. for 10 seconds.
    Type: Application
    Filed: May 11, 2006
    Publication date: March 19, 2009
    Inventors: Takashi Hiruma, Takeyoshi Yamada, You Miyashita, Kouichi Sawa, Kazuya Tanaka, Jun Takagi
  • Publication number: 20090029176
    Abstract: In order to provide a novel heat shield sheet allowing a high reflectance with respect to light beam in the near-infrared region and a high heat-shield effect to be obtained, a heat shield sheet is proposed, comprising a resin composition containing a resin having a refractive index of less than 1.52 and a fine powdery filler having a refractive index of 1.60 or greater, and having an average reflectance of 80% or greater at wavelengths from 810 nm to 2,100 nm.
    Type: Application
    Filed: February 1, 2007
    Publication date: January 29, 2009
    Applicant: MITSUBISHI PLASTICS, INC
    Inventors: Miki Nishida, Jun Takagi, Takashi Hiruma, Takayuki Watanabe, Kazunari Katsuhara
  • Publication number: 20080311320
    Abstract: The present invention provides a polyolefin series heat-shrinkable film comprising a mixed resin mainly containing a polyolefin series resin (A), polylactic acid series resin (B), and a resin (C) facilitating compatibility with the resin (A) and the resin (B), or comprising at least one layer made of the mixed resin, wherein mass ratio of the resin (A) to the resin (B) is (A)/(B)=99/1 to 70/30; heat shrinkage ratio of the film at least in one direction when dipped in hot water at 80° C. for 10 seconds is 20% or more; and natural shrinkage ratio of the film when stored at 40° C. under 50% RH environment for 7 days is less than 10%. This polyolefin series heat-shrinkable film exhibits excellent heat-shrinkable property and shrink finishing quality, and inhibits natural shrinkage. This invention also provides a polyolefin series heat-shrinkable label and container on which the heat-shrinkable label is fitted.
    Type: Application
    Filed: November 30, 2006
    Publication date: December 18, 2008
    Applicant: MITSUBISHI PLASTICS , INC.
    Inventors: Takashi Hiruma, Takeyoshi Yamada
  • Publication number: 20080286540
    Abstract: Heat shrinkable polystyrene films are provided which are excellent in shrinkage finish properties, low-temperature shrinkability, and resistance to solvents, and have low shrinkage stress, and in which natural shrinkage, a reduction in elongation by printing, and shrinkage due to solvents are suppressed. The films are laminated films having at least three layers. Outer layers of the laminated films are made of a styrene-butadiene block copolymer and an intermediate layer of the laminated films is made of a mixture of a styrene-butadiene block copolymer and another styrene-butadiene block copolymer and/or a styrene-butadiene-isoprene copolymer. As the laminated films, multilayer heat shrinkable polystyrene films are used which are at least monoaxially stretched. The ratio of thickness of their intermediate layer to the total thickness of the laminated films is from 60% to 85%, and the maximum value of the shrinkage stress at 90° C. in the main shrinkage direction is at most 2.5 MPa.
    Type: Application
    Filed: August 5, 2005
    Publication date: November 20, 2008
    Applicant: Mitsubishi Plastic, Inc.
    Inventors: Yukihiro Tanaka, Takashi Hiruma, Shuji Kobayashi, Tatsuya Hayashi
  • Patent number: 7413799
    Abstract: A reflective film includes a substantially non-drawn film having a layer A that includes a resin composition A containing a resin having a refractive index of less than 1.52 and titanium oxide. The titanium oxide has a refractive index of 2.5 or more, and a vanadium content of 5 ppm or less, and the film has a light reflectance of 95% or more to light having a wavelength of 550 nm, and a heat shrinkage ratio after treatment at 80° C. for 180 minutes of greater than ?0.1% and less than 1.0% in both a longitudinal direction (MD) and in a transverse direction (TD).
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: August 19, 2008
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Takashi Hiruma, Miki Nishida, Takayuki Watanabe, Kazunari Katsuhara, Jun Takagi