Patents by Inventor Masahiro Sugai

Masahiro Sugai 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: 11936829
    Abstract: An illuminating device, an image reading device, and an image forming apparatus. The illuminating device includes a plurality of first light sources arrayed on a circuit board, the first light sources having a plurality of first light emitting surfaces through which light is emitted, and a second light source disposed on an upstream side of the first light sources in an irradiation direction of the light. In the illuminating device, the second light source has a second light emitting surface through which light is emitted, and the second light source has a directivity angle different from a directivity angle of each one of the first light sources. The image reading device includes the illuminating device, and an imaging device to receive the light reflected by a document to capture an image of the document.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: March 19, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Atsushi Sugai, Masamoto Nakazawa, Masahiro Itoh
  • Patent number: 8980390
    Abstract: A biaxially stretched, blow molded bottle made of a resin comprising at least one of polyethylene terephthalate and a copolymerized polyester comprising ethylene terephthalate. The bottle neck is formed, just as the bottle body is formed, by expanding a body of a preform in a shape of a test tube in a stretching step of the molding process. The bottle neck has an average thickness in a range of 0.6 to 1.8 mm, and at the bottle neck, the resin is partially crystallized and is in an oriented crystallized state. A ratio of an absolute value of crystallization enthalpy, ?Hc, to melting enthalpy, ?Hm (|?Hc|/?Hm) of the bottle neck is a value less than 0.1, and a rate of dimensional change in the outer diameter of the bottle neck is 0.2% or less.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: March 17, 2015
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Yoshihiro Fuse, Yuich Okuyama, Masahiro Sugai
  • Patent number: 8574693
    Abstract: A preform is formed by compounding a resin made from poly-L-lactic acid with a functional filler and subjecting a mouth portion to a heat treatment. Also, a hollow shaped product is produced by blow-molding the preform.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: November 5, 2013
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Masahiro Sugai, Masato Suzuki, Hiromi Shimura, Junichi Chiba
  • Patent number: 8343604
    Abstract: A container made of synthetic resin which does not cause whitening or clouding in an unstretched portion even after long-period storage and which has excellent barrier properties. A PET bottle comprising a substrate layer made of PET and a barrier layer having a gas permeability lower than that of the substrate layer, wherein the barrier layer is made of a barrier material prepared by incorporating a polyamide containing m-xylene groups with an amorphous polyamide comprising both m-xylene isophthalamide structures and hexamethylene isophthalamide structures. A copolyamide composed of both a copolymer of m-xylenediamine and isophthalic acid and a copolymer of hexamethylenediamine and isophthalic acid is used as the amorphous polyamide. The content of the amorphous polyamide in the barrier layer is adjusted to 15 to 25 wt %.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: January 1, 2013
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Masahiro Sugai, Hiromi Shimura, Masato Suzuki
  • Patent number: 8273428
    Abstract: A biodegradable molded article and a container using the molded article, exhibiting heat resistant properties. The molded article is obtained by injection molding a polylactic acid resin, wherein the polylactic acid resin of the molded article contains less than 4 mol % of D-lactic acid. The molded article has a crystallized portion having a ratio of the crystallizing heat quantity to the melting heat quantity (|?HC|/|Hm), which ratio is not more than 0.7 in a differential scanning calorimetry (DSC) curve.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: September 25, 2012
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Masahiro Sugai, Junichi Chiba, Masato Suzuki, Shuichi Kitora
  • Publication number: 20120187068
    Abstract: A biaxially stretched, blow molded bottle made of a resin of the PET series has a bottle neck that is formed by expanding a body of a preform in a shape of a test tube to give the bottle neck a large diameter, just as the preform is expanded to obtain a body of the bottle, in a stretching step of a biaxial stretching and blow molding process. The bottle neck density is set at 1.368 g/cm3 or more or a ratio of an absolute value of crystallization enthalpy, ?Hc, to melting enthalpy, ?Hm, (that is, |?Hc|/?Hm) is set at a value less than 0.1, by meeting a processing condition for stretching in a stretching step and by setting a predetermined mold temperature within a thermally crystallizable range used for the resin of the polyethylene terephthalate series.
    Type: Application
    Filed: August 19, 2010
    Publication date: July 26, 2012
    Applicant: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Yoshihiro Fuse, Yuich Okuyama, Masahiro Sugai
  • Publication number: 20110036850
    Abstract: A container made of synthetic resin which does not cause whitening or clouding in an unstretched portion even after long-period storage and which has excellent barrier properties. A PET bottle comprising a substrate layer made of PET and a barrier layer having a gas permeability lower than that of the substrate layer, wherein the barrier layer is made of a barrier material prepared by incorporating a polyamide containing m-xylene groups with an amorphous polyamide comprising both m-xylene isophthalamide structures and hexamethylene isophthalamide structures. A copolyamide composed of both a copolymer of m-xylenediamine and isophthalic acid and a copolymer of hexamethylenediamine and isophthalic acid is used as the amorphous polyamide. The content of the amorphous polyamide in the barrier layer is adjusted to 15 to 25 wt %.
    Type: Application
    Filed: February 23, 2009
    Publication date: February 17, 2011
    Applicant: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Masahiro Sugai, Hiromi Shimura, Masato Suzuki
  • Publication number: 20110008562
    Abstract: A biodegradable molded article and a container using the molded article, exhibiting an improved heat resistance. The molded article is obtained by injection molding a polylactic acid resin, wherein the molded article comprises poly-L-lactic acid containing less than 4 mol% of D-lactic acid. The molded article has a crystallized portion at least locally, having a ratio of the crystallizing heat quantity to the melting heat quantity (|?Hc|/?Hm), which ratio is not more than 0.7 in a temperature rising chart obtained by differential scanning calorimetry (DSC).
    Type: Application
    Filed: February 26, 2009
    Publication date: January 13, 2011
    Applicant: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Masahiro Sugai, Junichi Chiba, Masato Suzuki, Shuichi Kitora
  • Publication number: 20090226655
    Abstract: A preform is formed by compounding a resin made from poly-L-lactic acid with a functional filler and subjecting a mouth portion to a heat treatment. Also, a hollow shaped product is produced by blow-molding the preform.
    Type: Application
    Filed: May 16, 2007
    Publication date: September 10, 2009
    Applicant: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Masahiro Sugai, Masato Suzuki, Hiromi Shimura, Junichi Chiba
  • Publication number: 20070197026
    Abstract: A synthetic resin container possessing a higher gas barrier property, and having a coating film (2) possessing a higher gas barrier property and positioned on an inner surface and/or and outer surface of the container body, wherein at least the coating film (2) is constituted of: an organic silicon compound layer (2a) positioned on the or each surface of the container body and including nitrogen, silicon, carbon, hydrogen, and oxygen; and a silicon oxide compound layer (2b) including a silicon oxide compound as a main component.
    Type: Application
    Filed: March 23, 2005
    Publication date: August 23, 2007
    Applicant: Yoshino Kogyosho Co., Ltd.
    Inventors: Makoto Takada, Hironori Tateno, Junichi Inaba, Takayuki Hayase, Masato Suzuki, Masahiro Sugai, Toshio Imai, Masao Hattori
  • Publication number: 20070178265
    Abstract: A synthetic resin container possessing a higher gas barrier property, and having a coating film possessing a higher gas barrier property and positioned on an inner surface and/or outer surface of a body of the container, wherein the coating film (2) is constituted of a layered coating including at least a gas barrier coating (2a) and a cover coating (2b), the cover coating being positioned at a topmost side of the coating film. The cover coating (2b) includes a layer positioned at a topmost side of the cover coating and possessing such a water repellency that the layer has a contact angle with water of 80° to 100°. The layers (2a, 2b) constituting the coatings, respectively, are each formed by vapor deposition and each have a refractive index in a range of 1.3 to 1.6.
    Type: Application
    Filed: March 23, 2005
    Publication date: August 2, 2007
    Applicant: Yoshino Kogyosho Co., Ltd.
    Inventors: Makoto Takada, Hironori Tateno, Junichi Inaba, Takayuki Hayase, Masato Suzuki, Masahiro Sugai, Toshio Imai, Masao Hattori