Patents by Inventor Yataro Yoshino

Yataro Yoshino 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: 5116565
    Abstract: A thin-walled bottle has ribs at least at its bottom portion, and the bottle bottom is raised up frusto-conically or has an undulatory shape. A tubular intermediate is first formed with ribs which become thin-walled protuberant ribs after blow molding. The thin-walled bottle is produced by blow-molding the ribbed tubular intermediate.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: May 26, 1992
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventor: Yataro Yoshino
  • Patent number: 5080244
    Abstract: This invention provides a synthetic resin thin-walled bottle, a tubular intermediate therefor and a method of producing a thin-walled bottle. The thin-walled bottle has ribs at least at its bottom portion, and the bottle bottom is raised up frusto-conically or has an undulatory shape. The tubular intermediate is first formed with ribs which become thin-walled protuberant ribs after blow molding. The thin-walled bottle is produced by blow-molding the ribbed tubular intermediate.
    Type: Grant
    Filed: May 31, 1989
    Date of Patent: January 14, 1992
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventor: Yataro Yoshino
  • Patent number: 4997692
    Abstract: A synthetic resin thin-walled bottle, a tubular intermediate therefor and a method of producing a thin-walled bottle. The thin-walled bottle has ribs at least at its bottom portion, and the bottle bottom is raised up frusto-conically or has an undulatory shape. The tubular intermediate is first formed with ribs which become thin-walled protuberant ribs after blow molding. The thin-walled bottle is produced by blow-molding the ribbed tubular intermediate.
    Type: Grant
    Filed: December 4, 1984
    Date of Patent: March 5, 1991
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventor: Yataro Yoshino
  • Patent number: 4620639
    Abstract: This invention provides a synthetic resin thin-walled bottle, a tubular intermediate therefor and a method of producing a thin-walled bottle. The thin-walled bottle has ribs at least at its bottom portion, and the bottle bottom is raised up frusto-conically or has an undulatory shape. The tubular intermediate is first formed with ribs which become thin-walled protuberant ribs after blow molding. The thin-walled bottle is produced by blow-molding the ribbed tubular intermediate.
    Type: Grant
    Filed: April 26, 1983
    Date of Patent: November 4, 1986
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventor: Yataro Yoshino
  • Patent number: 4609418
    Abstract: A hollow container of biaxially oriented synthetic resin engaged at the bottom portion thereof with a base cap, in which a bottom portion and a body portion are biaxially oriented, said bottom portion is formed in a regular circular shape of cross section and in a spherical shape swelled downwardly, comprising a base cap having a bottom wall for supporting the lower surface of the bottom portion of said container and a peripheral wall erected upwardly from the peripheral wall of said bottom wall and capable of elastically deforming; and said base cap being watertightly engaged at the inner surface of the peripheral wall thereof with the outer surface of the peripheral wall of the lower end portion of said container and engaged with said container. This container is manufactured by a method of engaging the container with a base cap having no air vent hole. Thus, the air can be readily exhausted in case of press-fitting the bottom of the container into the cap.
    Type: Grant
    Filed: July 17, 1985
    Date of Patent: September 2, 1986
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Yataro Yoshino, Mamoru Oshida, Katsuji Mitani
  • Patent number: 4463860
    Abstract: The present invention relates to a saturated polyester resin bottle with a spherically-shaped bottom so that the bottle can be filled with liquid under a relatively high pressure. The bottle includes adjacent its bottom a reduced diameter portion shaped for receiving a cylindrical bottle stand which provides a flat base for supporting the bottle in an upright position.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: August 7, 1984
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Yataro Yoshino, Takami Tsukada, Tadao Saito, Takamitsu Nozawa
  • Patent number: 4464328
    Abstract: Herein disclosed are a bottle of a saturated polyester resin and its method of production. According to the method of the present invention, saturated polyester resin is injection-molded into a parison which is composed of a mouth and a barrel. The mouth of the parison is oriented in the direction of the axis of the parison and in a direction perpendicular to the parison's axis by means of an orienting jig. The barrel of the parison is biaxially oriented by a blow-molding process. The bottle thus produced has been oriented as a whole.
    Type: Grant
    Filed: August 13, 1982
    Date of Patent: August 7, 1984
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Yataro Yoshino, Akiho Ota, Hiroaki Sugiura
  • Patent number: 4442944
    Abstract: The present invention relates to a saturated polyester resin bottle with a spherically-shaped bottom so that the bottle can be filled with liquid under a relatively high pressure. The bottle includes adjacent its bottom a reduced diameter portion shaped for receiving a cylindrical bottle stand which provides a flat base for supporting the bottle in an upright position.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: April 17, 1984
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Yataro Yoshino, Takami Tsukada, Tadao Saito, Takamitsu Nozawa
  • Patent number: 4412966
    Abstract: A method of orienting the neck of a bottle of a saturated polyester resin so as to enhance the physical properties and durability of the neck. The neck orienting method includes the step of inserting an orienting rod having a taper head into the neck which is being heated. The neck orienting method may include the step of orienting only the mouth edge of the neck.
    Type: Grant
    Filed: June 4, 1981
    Date of Patent: November 1, 1983
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Yataro Yoshino, Sadao Suzuki, Takuzo Takada
  • Patent number: 4406854
    Abstract: A tubular parison for molding a bottle-shaped container of biaxially oriented synthetic resin and a bottle-shaped container blow-molded from the tubular parison for filling, for example, drinking water containing carbon dioxide gas or the like. The tubular parison is advantageously formed so that the shoulder and bottom forming portions are thinner by a predetermined ratio than the body thereof. Thus, the bottle-shaped container blow-molded from the tubular parison is much stronger in construction.
    Type: Grant
    Filed: September 29, 1981
    Date of Patent: September 27, 1983
    Assignee: Yoshino Kogyosho Co. Ltd.
    Inventor: Yataro Yoshino
  • Patent number: 4397808
    Abstract: Herein disclosed are a bottle of a saturated polyester resin and its method of production. According to the method of the present invention, saturated polyester resin is injection-molded into a parison which is composed of a mouth and a barrel. The mouth of the parison is oriented in the direction of the axis of the parison and in a direction perpendicular to the parison's axis by means of an orienting jig. The barrel of the parison is biaxially oriented by a blow-molding process. The bottle thus produced has been oriented as a whole.
    Type: Grant
    Filed: March 19, 1981
    Date of Patent: August 9, 1983
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Yataro Yoshino, Akiho Ota, Hiroaki Sugiura
  • Patent number: 4386046
    Abstract: Herein disclosed is a method of orienting the neck of a bottle of a saturated polyester resin so as to enhance the physical properties and durability of the neck. The neck orienting method includes the step of inserting an orienting rod having a taper head into the neck which is being heated. The neck orienting method may include the step of orienting only the mouth edge of the neck.
    Type: Grant
    Filed: June 4, 1981
    Date of Patent: May 31, 1983
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Yataro Yoshino, Sadao Suzuki, Takuzo Takada
  • Patent number: 4372909
    Abstract: Herein disclosed are a bottle of a saturated polyester resin and its method of production. According to the method of the present invention, saturated polyester resin is injection-molded into a parison which is composed of a mouth and a barrel. The mouth of the parison is oriented in the direction of the axis of the parison and in a direction perpendicular to the parison's axis by means of an orienting jig. The barrel of the parison is biaxially oriented by a blow-molding process. The bottle thus produced has been oriented as a whole.
    Type: Grant
    Filed: March 19, 1981
    Date of Patent: February 8, 1983
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Yataro Yoshino, Akiho Ota, Hiroaki Sugiura
  • Patent number: 4367820
    Abstract: The present invention relates to a saturated polyester resin bottle with a spherically-shaped bottom so that the bottle can be filled with liquid under a relatively high pressure. The bottle includes adjacent its bottom a reduced diameter portion shaped for receiving a cylindrical bottle stand which provides a flat base for supporting the bottle in an upright position.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: January 11, 1983
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Yataro Yoshino, Takami Tsukada, Tadao Saito, Takamitsu Nozawa
  • Patent number: 4352435
    Abstract: The synthetic resin thin-walled bottle of this invention is raised up at its bottom to form a small-diameter rise having a conical lower portion and is also provided with a plurality of outwardly swelling bulges at the lower part of its body portion such that the underside of each bulge constitutes a ground-contacting portion. Thus, although a small-diameter rise having a conical lower portion is formed at the bottom, the standing position of the bottle is stabilized by provision of a large-diameter ground-contacting portion at the bottom.
    Type: Grant
    Filed: January 30, 1981
    Date of Patent: October 5, 1982
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Yataro Yoshino, Akiho Ota, Hiroaki Sugiura
  • Patent number: 4315725
    Abstract: A jig used for a blow-molding machine for fabricating a bottle-shaped container of biaxially oriented plastic, which comprises advantageously a core shaft elevationally movably inserted in a mandrel and having a blow-molding air passage for longitudinally orienting the piece, and a heat insulating layer provided on the outer periphery of the core shaft for heating the piece upon irradiation of heat rays such as far infrared rays to thereby externally heat the piece and also internally heat the piece. Thus, the piece is uniformly heated in or immediately before the blow-molding of the piece so as to improve the molding accuracy of the piece into a bottle-shaped container in the blow molding mold.
    Type: Grant
    Filed: June 17, 1980
    Date of Patent: February 16, 1982
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventor: Yataro Yoshino
  • Patent number: 4301933
    Abstract: The synthetic resin thin-walled bottle of this invention is raised up at its bottom to form a small-diameter rise having a conical lower portion and is also provided with a plurality of outwardly swelling bulges at the lower part of its body portion such that the underside of each bulge constitutes a ground-contacting portion. Thus, although a small-diameter rise having a conical lower portion is formed at the bottom, the standing position of the bottle is stabilized by provision of a large-diameter ground-contacting portion at the bottom.
    Type: Grant
    Filed: December 7, 1979
    Date of Patent: November 24, 1981
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventor: Yataro Yoshino
  • Patent number: 4297306
    Abstract: Herein disclosed is a method of orienting the neck of a bottle of a saturated polyester resin so as to enhance the physical properties and durability of the neck. The neck orienting method includes the step of inserting an orienting rod having a taper head into the neck which is being heated. The neck orienting method may include the step of orienting only the mouth edge of the neck.
    Type: Grant
    Filed: November 7, 1979
    Date of Patent: October 27, 1981
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Yataro Yoshino, Sadao Suzuki, Takuzo Takada
  • Patent number: 4254882
    Abstract: A biaxially oriented molded bottle of a saturated polyester, especially polyethylene terephthalate, exhibits various superior characteristics as a bottle container but, because of its lack of mechanical strength, its use as a pressure bottle has been regarded as impossible. According to the invention, the lack of mechanical strength is compensated for by slightly increasing the wall thickness of the bottle, and providing a bottom structure having a plurality of legs designed to counteract the deformation caused by the internal pressure.
    Type: Grant
    Filed: August 9, 1979
    Date of Patent: March 10, 1981
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventor: Yataro Yoshino