Patents by Inventor Tsutomu Onodera

Tsutomu Onodera 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: 7842748
    Abstract: The present invention pertains to a master batch composition which contains 10 to 95% by mass of an additive for plastics, 1 to 50% by mass of an olefin polymer having specific physical properties, and 1 to 89% by mass of a polyolefin resin as a carrier, which is useful for producing a polyolefin resin, particularly an injection molded product of a polypropylene resin, which can improve dispersibility of additives in the polyolefin molded product, which permits high density filling of various additives in the master batch composition, and which is free of blocking. The present invention is also directed to a polyolefin resin composition in which the master batch composition is compounded in a polyolefin resin, and to a polyolefin molded product using the resin composition.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: November 30, 2010
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Tomoaki Takebe, Yutaka Minami, Tsutomu Onodera, Motoki Yamada
  • Patent number: 7732532
    Abstract: A multistage propylene-based polymer including the following components (A) and (B): (A) 5 to 20 wt % of a propylene homopolymer component or a copolymer component of propylene and an ?-olefin with 2 to 8 carbon atoms having an intrinsic viscosity [?] of more than 10 dL/g in tetralin at 135° C.; and (B) 80 to 95 wt % of a propylene homopolymer component or a copolymer component of propylene and an ?-olefin with 2 to 8 carbon atoms having an intrinsic viscosity [?] of 0.5 to 3.0 dL/g in tetralin at 135° C.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: June 8, 2010
    Assignee: Prime Polymer Co., Ltd.
    Inventors: Ryoichi Tsunori, Yasuhiko Otsuki, Tsutomu Onodera, Shohei Ikeda, Masayuki Shinohara
  • Publication number: 20080119605
    Abstract: The present invention pertains to a master batch composition which contains 10 to 95% by mass of an additive for plastics, 1 to 50% by mass of an olefin polymer having specific physical properties, and 1 to 89% by mass of a polyolefin resin as a carrier, which is useful for producing a polyolefin resin, particularly an injection molded product of a polypropylene resin, which can improve dispersibility of additives in the polyolefin molded product, which permits high density filling of various additives in the master batch composition, and which is free of blocking. The present invention is also directed to a polyolefin resin composition in which the master batch composition is compounded in a polyolefin resin, and to a polyolefin molded product using the resin composition.
    Type: Application
    Filed: November 22, 2005
    Publication date: May 22, 2008
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Tomoaki Takebe, Yutaka Minami, Tsutomu Onodera, Motoki Yamada
  • Publication number: 20070208138
    Abstract: A multistage propylene-based polymer including the following components (A) and (B): (A) 5 to 20 wt % of a propylene homopolymer component or a copolymer component of propylene and an ?-olefin with 2 to 8 carbon atoms having an intrinsic viscosity [?] of more than 10 dL/g in tetralin at 135° C.; and (B) 80 to 95 wt % of a propylene homopolymer component or a copolymer component of propylene and an ?-olefin with 2 to 8 carbon atoms having an intrinsic viscosity [?] of 0.5 to 3.0 dL/g in tetralin at 135° C.
    Type: Application
    Filed: March 15, 2005
    Publication date: September 6, 2007
    Applicant: Prime Polymer Co., Ltd.
    Inventors: Ryoichi Tsunori, Yasuhiko Otsuki, Tsutomu Onodera, Shohei Ikeda, Masayuki Shinohara
  • Patent number: 6071999
    Abstract: A process for preparing a styrenic resin is herein disclosed which comprises the step of volatilizing extrudinga styrenic polymer (SPS) powder having a syndiotactic configuration in the presence of water, an alcohol or an antioxidant by the use of an extruder to obtain pellets. According to this process, the operation of volatilization extrusion is done in the presence of water, the alcohol or the antioxidant to stably and efficiently prepare the SPS pellets in which yellowing is inhibited, and the operation of the volatilization extrusion is carried out in the presence of water to stably and efficiently prepare the SPS pellets containing a less amount of a remaining volatile component such as an unreacted monomer.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: June 6, 2000
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Tsutomu Onodera, Kazuyoshi Fukada, Takashi Saeki
  • Patent number: 5760172
    Abstract: A process for preparing a styrenic resin is herein disclosed which comprises the step of volatilizing-extruding a styrenic polymer (SPS) powder having a syndiotactic configuration in the presence of water, an alcohol or an antioxidant by the use of an extruder to obtain pellets. According to this process, the operation of volatilization-extrusion is done in the presence of water, the alcohol or the antioxidant to stably and efficiently prepare the SPS pellets in which yellowing is inhibited, and the operation of the volatilization-extrusion is carried out in the presence of water to stably and efficiently prepare the SPS pellets containing a less amount of a remaining volatile component such as an unreacted monomer.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: June 2, 1998
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Tsutomu Onodera, Kazuyoshi Fukada, Takashi Saeki
  • Patent number: 5756658
    Abstract: A styrenic resin is prepared by a method which comprises extruding a styrenic polymer powder having a syndiotactic configuration at a molding temperature of from the melting point of the polymer to 400.degree. C. at an extrusion rate meeting the equation Q/(D.times.H.times.V)=2.0.times.10.sup.4 to 6.0.times.10.sup.5, by the use of an extruder provided with one or more vents having an internal pressure of 0 to 760 Torr, wherein Q is an extrusion rate (kg/hr), D is a screw diameter (m), H is a screw groove depth (m), and V is a screw peripheral speed (m/sec); a residual volatile component, such as a monomer in the styrenic polymer powder having the syndiotactic configuration, can economically and efficiently be decreased at the time of extrusion, whereby a molding material having a good shape and containing a reduced amount of the residual volatile component can efficiently be prepared to prevent the emission of an objectionable odor at the time of the extrusion or molding.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: May 26, 1998
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Tsutomu Onodera, Kazuyoshi Fukada, Takashi Saeki
  • Patent number: 5620177
    Abstract: A paper slip storage system having a paper slip storage container (20) being placed in conjunction with a transport mechanism for storing transported paper slips is disclosed. The system has a temporary housing section (33), a rotational displacement mechanism (30, 80), and a separation mechanism (60). The temporary housing section (33) receives a transported paper slip M and temporarily houses it. The rotational displacement mechanism (30, 80) rotationally displaces the housing section for guiding the paper slip housed therein to a paper slip storage position of the paper slip storage container (20). The separation mechanism (60) blocks rotation of the paper slip housed in the temporary housing section against operation of rotational displacement of the temporary housing section and separates the paper slip from the temporary housing section at the paper slip storage position of the paper slip storage container.
    Type: Grant
    Filed: February 8, 1995
    Date of Patent: April 15, 1997
    Assignee: Kabushiki Kaisha Ace Denken
    Inventors: Takatoshi Takemoto, Noriaki Kano, Eiji Ito, Tsutomu Onodera, Kozo Sekimoto
  • Patent number: 5570772
    Abstract: An assembly for attaching a coin separator to a coin stacker, wherein the coin stacker has a plurality of coin storage boxes for storing coins therein, and the coin separator assorts the plurality of sorts of coins supplied from outside and then delivers the assorted coins to the corresponding coin storage boxes. The assembly capable of attaching the coin separator to the coin stacker with ease comprises a main frame which is fixed to the coin stacker; a subframe which is movably coupled to the main frame, which holds the coin separator so as to be detachable, and which guides the coin separator between an engagement position where the coin separator and part of the coin stacker are held in engagement and a non-engagement position where they are not held in engagement; and a fixing member which fixes the coin separator and the subframe to the main frame at the engagement position.
    Type: Grant
    Filed: March 2, 1995
    Date of Patent: November 5, 1996
    Assignee: Kabushiki Kaisha Ace Denken
    Inventors: Takatoshi Takemoto, Sakuji Yaegasi, Tsutomu Onodera
  • Patent number: 5158591
    Abstract: In an optical fiber ribbon fusion-splicing device, a TV camera is set such that the horizontal direction of an image sensor contained in the TV camera in which direction a horizontal scanning is carried out and the resolution of the image sensor is higher than that in the vertical direction in which a vertical scanning is carried out is a direction perpendicular to the coaxial direction of a pair of grooved supporting members for supporting fibers of a pair of optical fiber ribbons to be fusion-spliced. Thus, when the fibers of the pair of optical fiber ribbons are set on the supporting members in the coaxial direction thereof, the horizontal direction of the image sensor is perpendicular to the coaxial direction of the fibers of the optical fiber ribbon. Since, therefore, misalignment of the fibers is involved in the high resolution direction, the misalignment can be detected with high precision, without decreasing the power factor of the image sensor.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: October 27, 1992
    Assignee: Fujikura Ltd.
    Inventors: Tsutomu Onodera, Takeshi Yamada, Hiroyuki Taya
  • Patent number: 5156663
    Abstract: An apparatus for fushion splicing optical fiber with three pairs at clamps; the outermost pair of clamps has one rotatable clamp mechanism that is manually operated and a second rotatable clamp mechanism that is operated by a motor. A rapid fine adjustment of the alignment of the polarization maintaining optical fibers can be made.
    Type: Grant
    Filed: April 16, 1991
    Date of Patent: October 20, 1992
    Assignees: Fujikura Ltd., Nippon Telegraph & Telephone Corporation
    Inventors: Keinichiro Itoh, Takeshi Yamada, Tsutomu Onodera, Mikio Yoshinuma, Yasuyuki Kato
  • Patent number: 5149350
    Abstract: An apparatus for fusion splicing optical fibers has one rotatable clamp mechanism that is manually operated and a second rotatable clamp mechanism that is operated by a motor. A three position stopper functions in the first position as a stopper against the optical fibers when the optical fibers are moved toward each other and in the second position as a mirror for reflecting an image of respective end faces of the optical fibers. A rapid fine adjustment of the alignment of the polarization maintaining optical fibers can be made.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: September 22, 1992
    Assignees: Fujikura Ltd., Nippon Telegraph & Telephone Corporation
    Inventors: Kenichiro Itoh, Takeshi Yamada, Tsutomu Onodera, Mikio Yoshinuma, Yasuyuki Kato
  • Patent number: 5147434
    Abstract: An apparatus for fusion splicing optical fibers has one rotatable clamp mechanism that is manually operated, a second rotatable clamp mechanism that is operated by a motor and a twist preventing means removably coupled to the apparatus with an arm member. A rapid fine adjustment of the alignment of the polarization maintaining optical fibers can be made.
    Type: Grant
    Filed: April 16, 1991
    Date of Patent: September 15, 1992
    Assignees: Fujikura Ltd., Nippon Telegraph & Telephone Corporation
    Inventors: Kenichiro Itoh, Takeshi Yamada, Tsutomu Onodera, Mikio Yoshinuma, Yasuyuki Kato
  • Patent number: 5009513
    Abstract: In a method of measuring a quantity of heat, the distance between the position of an end of an exposed fiber portion before heating and the position of the end after heating is measured, and the quantity of heat applied to the end of the exposed fiber portion is calculated based on the distance. When heat is applied to an end of an exposed fiber portion, the end is fused and is rounded due to surface tension. For this reason, the position of the end of the exposed fiber portion retracts from the position it occupied before heating by the volume required for rounding the end. This retraction amount corresponds to a quantity of heat applied to the end of the exposed fiber portion. Therefore, by meauring the retraction amount, the quantity of heat applied to the ends of the exposed fiber portion can be quantitatively measured.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: April 23, 1991
    Assignee: Fujikura Ltd.
    Inventors: Tsutomu Onodera, Takeshi Yamada
  • Patent number: 4986843
    Abstract: An apparatus for fusion splicing optical fibers has one rotatable clamp mechanism that is manually operated and a second rotatable clamp mechanism that is operated by a motor. A rapid fine adjustment of the alignment of the polarization maintaining optical fibrs can be made.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: January 22, 1991
    Assignees: Fujikura Ltd., Nippon Telegraph and Telephone Corporation
    Inventors: Kenichiro Itoh, Takeshi Yamada, Tsutomu Onodera, Mikio Yoshinuma, Yasuyuki Kato
  • Patent number: 4978201
    Abstract: In a method for estimating a splice loss of a spliced portion of a fusion-spliced optical fiber, an amount of axial deviation attained prior to or immediately after heating a pair of optical fibers and an amount of axial deviation attained upon completion of heat treatment on the optical fibers are first detected to provide a difference between the axial deviations, and a splice loss originated from an opposite-phase core distortion is estimated based on the difference between the axial distortions.
    Type: Grant
    Filed: January 26, 1989
    Date of Patent: December 18, 1990
    Assignee: Fujikura Ltd.
    Inventors: Takeshi Yamada, Tsutomu Onodera, Hiroyuki Taya
  • Patent number: 4945776
    Abstract: In a method of testing a spliced portion of exposed fiber portions of optical fibers, the optical fibers are arranged with each other in line so that ends of the exposed fiber portions are spaced apart from each other by a predetermined distance. The ends of the exposed fiber portions are heated and melted by discharge heating. The optical fibers are then moved in the abutment or closing directions by a predetermined distance, so that the ends of the exposed fiber portions abut against each other to form a spliced portion. The minimum outer diameter value d of the spliced portion is measured. Ratio d/D of minimum value d to value D of the outer diameter of exposed fiber portion is calculated. Spliced portions having splicing defects can be detected by detecting of spliced portions having ratio d/D of less than 1 (d/D<1). That is, spliced portions having ratio d/D of less than 1 (d/D<1) are regarded as splicing defects.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: August 7, 1990
    Assignee: Fujikura Ltd.
    Inventors: Takeshi Yamada, Tsutomu Onodera, Hiroyuki Taya
  • Patent number: 4908677
    Abstract: In a method of examining the states of alignment of glass fibers in a pair of ribbon fiber cables by observing their images obtained in two directions, a reflecting mirror is located adjacent to glass fibers of a pair of ribbon fiber cables. Illuminating light is introduced into the glass fibers of the fiber cabes in a direction different from the normal direction of a plane formed by the glass fibers, and an image formed by the illuminating light which is reflected by the reflecting mirror and then passed through the glass fibers and another image formed by the illuminating light which is passed through the glass fibers and then reflected by the reflecting mirror are observed. According to the examining method, the optical axes of two images obtained on the light receiving side can be made parallel to each other to keep the two images extremely near to each other. Therefore, the distance along which the pickup system must be moved can be made short.
    Type: Grant
    Filed: August 8, 1988
    Date of Patent: March 13, 1990
    Assignee: Fujikura Ltd.
    Inventors: Tsutomu Onodera, Takeshi Yamada