Patents by Inventor Toshihide Iida

Toshihide Iida 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).

  • Publication number: 20210108747
    Abstract: A fitting assembly for fluid device is provided, which can reduce space for installation of fluid devices. The assembly includes a first port, a second port, a first annular member, a second annular member, and a connector. The first port is annular and installed at a first fluid device to be connected with its first fluid channel. The second port is annular and installed at a second fluid device to be connected with its second fluid channel. The first annular member is installed at the first port and has a first coupler. The second annular member is installed at the second port and has a second coupler to be coupled with the first coupler to fix the second annular member to the first annular member. The connector is installed between the first port and the second port and seals gaps between the connector and the first and second ports.
    Type: Application
    Filed: June 15, 2018
    Publication date: April 15, 2021
    Applicant: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Toshihide IIDA, Tatsuya FUJII, Katsunori SUGITA, Takahito KONISHI, Tomoyuki KOIKE
  • Publication number: 20210054932
    Abstract: A gasket for connecting flow passage holes formed in two piping blocks, respectively, includes, at both sides in an axial direction, a pair of tubular radially outer press-fitting portions configured to be respectively press-fitted into tubular radially outer sealing grooves formed, radially outward of the flow passage holes, on end surfaces of both piping blocks, and a sealing peripheral surface configured to come into close contact with an outer peripheral surface of the radially outer sealing groove to exert a sealing function is formed on an outer peripheral surface of each radially outer press-fitting portion. A groove portion is formed on an outer peripheral surface of the gasket such that, in a state where either one of the pair of radially outer press-fitting portions is press-fitted into a sealing groove of the piping block, the groove portion is open axially outward of the end surface of the piping block.
    Type: Application
    Filed: February 25, 2019
    Publication date: February 25, 2021
    Applicant: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Tomoyuki KOIKE, Atsushi NAKANO, Tomohiro ADACHI, Toshihide IIDA
  • Publication number: 20210033225
    Abstract: An integrated block 1 serving as a fluid device includes: a flow port 13 open to form one end of a passage P; an annular groove 14 arranged along an outer circumferential edge of the flow port 13, the annular groove 14 being open so as to insert the gasket 2 therein; a first tapered portion 17 arranged on a radially-inner side interior wall 14b of the annular groove 14 and sloped radially outward from an open end of the annular groove 14 in a depth direction of the annular groove 14; and a guide 18 arranged on a radially-outer side interior wall 14a of the annular groove 14, extending throughout a predetermined range D from the open end of the annular groove 14 in the depth direction, and having a larger diameter than an outer circumferential surface 22a of a second sealing portion 22 of the gasket 2.
    Type: Application
    Filed: March 12, 2019
    Publication date: February 4, 2021
    Inventors: Tomohiro ADACHI, Tomoyuki KOIKE, Atsushi NAKANO, Toshihide IIDA
  • Publication number: 20200408305
    Abstract: A gasket-mounting structure includes a mounting member and a gasket. The mounting member includes a first base, an outer sleeve protruding from the first base, an inner sleeve protruding from the first base in the same direction of the outer sleeve radially inside the outer sleeve, and a groove surrounded by the first base, the outer sleeve, and the inner sleeve. The gasket includes an annular second base, an annular outer protrusion extending from the second base to be pressed in the groove, and an annular inner protrusion extending from the second base to be axially pressed on the inner sleeve radially inside the outer protrusion such that the inner sleeve is radially placed between the outer protrusion and the inner protrusion.
    Type: Application
    Filed: January 15, 2019
    Publication date: December 31, 2020
    Applicant: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Tomohiro ADACHI, Toshihide IIDA, Tomoyuki KOIKE, Atsushi NAKANO
  • Patent number: 10801650
    Abstract: A pipe joint, made of synthetic resin, including: an inner ring; a joint body having an annular sealing groove and a male screw portion formed on an outer circumference; a union nut having a female screw portion formed on an inner circumference to be tightened onto the male screw portion of the joint body, such that a first opposing surface is formed in the joint body to be perpendicular to an axial direction, and a second opposing surface is formed in the union nut to oppose the first opposing surface. An engagement projection is provided in one of the first opposing surface and the second opposing surface. An engagement recess is provided in the other of the first opposing surface and the second opposing surface such that the engagement projection engages with the engagement recess when the union nut has been tightened up to an appropriate position.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: October 13, 2020
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Makoto Fujii, Toshihide Iida
  • Patent number: 10792888
    Abstract: Provided is a coating base material having a new configuration capable of enhancing the durability of a coating regardless of the adhesion strength of a primer. A coating base material 1 whose surface is subjected to application of a coating includes: a mesh-like valley portion 2 formed on the surface; and a plurality of island portions 3 formed on the surface and surrounded by the valley portion 2. Each island portion 3 has a crater-like recess 4 formed on an upper surface thereof.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: October 6, 2020
    Assignee: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Toshihide Iida, Noboru Tamaki, Masateru Yamada
  • Patent number: 10571060
    Abstract: A structure of a resin-made pipe joint includes a sleeve which is press-insertable from one axial side into one longitudinal end portion of a flexible tube to flare the one longitudinal end portion to hold the flared state, a joint body which is couplable to the sleeve, and a union nut which is fastenable to the joint body to hold a state where the sleeve press-inserted into the one longitudinal end portion is coupled to the joint body. The sleeve has a taper-like first outer circumferential surface, a second outer circumferential surface having an outer diameter that is smaller than a maximum outer diameter of the first outer circumferential surface, and an annular step portion which is an annular step portion that is disposed between the first outer circumferential surface and the second outer circumferential surface and comprises an edge portion on a side of the first outer circumferential surface.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: February 25, 2020
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Makoto Fujii, Kazukiyo Teshima, Tatsuya Fujii, Toshihide Iida, Tomoyuki Koike, Shintaro Makihata
  • Publication number: 20200047452
    Abstract: Provided is a coating base material having a new configuration capable of enhancing the durability of a coating regardless of the adhesion strength of a primer. A coating base material 1 whose surface is subjected to application of a coating includes: a mesh-like valley portion 2 formed on the surface; and a plurality of island portions 3 formed on the surface and surrounded by the valley portion 2. Each island portion 3 has a crater-like recess 4 formed on an upper surface thereof.
    Type: Application
    Filed: January 22, 2018
    Publication date: February 13, 2020
    Applicant: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Toshihide IIDA, Noboru TAMAKI, Masateru YAMADA
  • Publication number: 20190331272
    Abstract: A resin tube fitting prevents backwaters between its body and inner ring. The fitting includes a body, an inner ring, and a union nut. The body has main, outer, and inner sleeves, and a groove. The inner ring has a cylinder, an insert, and outer and inner protrusions. The union nut has a body and a pressing member. The inner sleeve has a through hole serving as a channel. The inner protrusion extends from the cylinder to an axial direction to contact the inner sleeve. The inner protrusion has a through hole serving as another channel connected with the inner sleeve's channel. The tip of the inner protrusion has an inner diameter not less than the minimum inner diameter of the inner sleeve. An inner peripheral surface is located at the inner periphery of the inner protrusion and causes it to reduce in inner diameter toward another axial direction.
    Type: Application
    Filed: January 15, 2018
    Publication date: October 31, 2019
    Applicant: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Makoto FUJII, Toshihide IIDA, Tomoyuki KOIKE, Motoaki NARUO
  • Patent number: 10436364
    Abstract: A structure of a resin-made pipe joint includes a joint body having a cylindrical shape, a sleeve having a cylindrical press-inserting portion which is press-insertable into the joint body and a cylindrical coupling portion which is press-insertable into a tube, and a fastening member for fixing the tube which is in a state where the coupling portion is press-inserted, to the joint body through the sleeve. The sleeve contains a sealing surface in an outer circumferential surface of the press-inserting portion, the sealing surface being closely contactable with an inner circumferential surface of the joint body, and comprises a non-contacting surface between the press-inserting portion and the coupling portion, the non-contacting surface forming a space with respect to the inner circumferential surface of the joint body, when the sealing surface is closely contacted with the inner circumferential surface of the joint body.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: October 8, 2019
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Makoto Fujii, Masaki Miyamoto, Tatsuya Fujii, Toshihide Iida, Tomoyuki Koike, Shintaro Makihata
  • Publication number: 20190257458
    Abstract: A resin tube fitting has a body with a sleeve allowing the longitudinal end of the tube to be put therein, an inner ring with a press-in portion configured to be pressed in the longitudinal end of the tube, and a union nut with a connector configured to be screwed to an outer periphery of the body to allow the longitudinal end of the tube to be put radially between the connector and the press-in portion. The inner ring and the union nut are made of resin, which has a property of contracting in response to change in ambient temperature. The radial contraction rate of the connector is higher by 0.05% or more than that of the press-in portion of the inner ring.
    Type: Application
    Filed: June 15, 2017
    Publication date: August 22, 2019
    Applicant: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Makoto FUJII, Masaki MIYAMOTO, Tatsuya FUJII, Toshihide IIDA, Tomoyuki KOIKE, Shintaro MAKIHATA
  • Publication number: 20190203858
    Abstract: A resin tube fitting has: a body with an outer sleeve; an inner ring including an insert portion insertable into the outer sleeve to contact the outer sleeve radially, and a press-in portion configured to be pressed into a longitudinal end of the tube; and a union nut configured to be engageable with the body. The body and the inner ring are made of resin, which has a property of contracting in response to change in ambient temperature. A radial contraction rate of the outer sleeve of the body is designed to be higher by 0.09% or more than that of the insert portion of the inner ring.
    Type: Application
    Filed: June 15, 2017
    Publication date: July 4, 2019
    Applicant: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Makoto FUJII, Masaki MIYAMOTO, Tatsuya FUJll, Toshihide IIDA, Tomoyuki KOIKE, Shintaro MAKIHATA
  • Publication number: 20190193315
    Abstract: A method for manufacturing a resin pipe joint with a joint body includes the following steps. Preparing a mold and a supply device configured to supply molten resin. The mold includes a first mold for an outer shape of the joint body and a second mold for an inner shape of the joint body. Combining the second mold with the first mold to form a cavity, into which the molten resin is injectable, inside the mold. Supplying the molten resin to the cavity in the mold. Solidifying the molten resin in the cavity after stop of the supply of the molten resin from the supply device. The second mold has a gap that connects the cavity to a discharge space outside the cavity and allows gas to flow.
    Type: Application
    Filed: June 15, 2017
    Publication date: June 27, 2019
    Applicant: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Masaki MIYAMOTO, Masateru YAMADA, Kazukiyo TESHIMA, Hiroki SAKAMOTO, Toshihide IIDA, Tomoyuki KOIKE, Motoaki NARUO
  • Patent number: 10240699
    Abstract: A resin-made pipe joint with enhanced sealing property between a joint body and sleeve. A sealing portion which seals between an inner circumferential surface of an inserting portion of a sleeve and an outer circumferential surface of an inner cylinder portion is formed by press-inserting an inserting portion into a groove portion of the joint body. When the inserting portion is press-inserted into the groove portion, a space is formed between a body cylinder portion located opposite to an opening portion of the groove portion in the axial direction, and the projection end of the inserting portion. After completing press insertion of the inserting portion into the groove portion, in a section including axis of the inner cylinder portion, a region in the outer circumferential surface of the inner cylinder portion facing the space forms an angle of 5° to 15° to the axis of the inner cylinder portion.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: March 26, 2019
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Makoto Fujii, Masaki Miyamoto, Toshihide Iida, Tomoyuki Koike, Atsushi Nakano, Daisuke Urata
  • Patent number: 10190708
    Abstract: A resin-made pipe joint enhancing sealing property between a joint body and a sleeve. The joint body and the sleeve are produced by using a fluorine resin. A sealing portion which seals between the inner circumferential surface of an inserting portion of the sleeve and the outer circumferential surface of the inner cylinder portion is formed by press-inserting the inserting portion into a groove portion of the joint body. When, with respect to the inserting and groove portions, an insertion rate of the inserting portion to the groove portion is indicated by X, and a multiplying factor of the radial width of the inserting portion to the radial width of the groove portion is indicated by Y, the resin-made pipe joint has the insertion rate and multiplying factor which are within a range defined by following Expressions (1) and (2): Y=?0.218X+1.218??(1) and Y=?0.67X+1.67.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: January 29, 2019
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Makoto Fujii, Masaki Miyamoto, Toshihide Iida, Tomoyuki Koike, Atsushi Nakano, Daisuke Urata
  • Publication number: 20190024836
    Abstract: A pipe joint, made of synthetic resin, including: an inner ring; a joint body having an annular sealing groove and a male screw portion formed on an outer circumference; a union nut having a female screw portion formed on an inner circumference to be tightened onto the male screw portion of the joint body, such that a first opposing surface is formed in the joint body to be perpendicular to an axial direction, and a second opposing surface is formed in the union nut to oppose the first opposing surface. An engagement projection is provided in one of the first opposing surface and the second opposing surface. An engagement recess is provided in the other of the first opposing surface and the second opposing surface such that the engagement projection engages with the engagement recess when the union nut has been tightened up to an appropriate position.
    Type: Application
    Filed: September 25, 2018
    Publication date: January 24, 2019
    Applicant: Nippon Pillar Packing Co., Ltd.
    Inventors: Makoto Fujii, Toshihide Iida
  • Patent number: 10145497
    Abstract: A pipe-connecting device including a resin-made tube and an inner ring. The inner ring has a flared portion and a tip-contracted outer-circumferential flared surface. The tip-contracted outer-circumferential flared surface is press-inserted into an end portion of the tube to cause the end portion of the tube to be flared and deformed. A section shape of the outer-circumferential flared surface in a direction extending along an axis of the inner ring body is formed into a convex curved surface passing through a first place, which is a maximum-diameter portion of the flared portion, a second place, which is the tip end side of the flared portion of the inner ring body, and a third place, which is between the first place and the second place, and in which a diameter is equal to an outer diameter of the tube with respect to the axis.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: December 4, 2018
    Assignee: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Makoto Fujii, Toshihide Iida
  • Patent number: 10139028
    Abstract: A pipe joint made of synthetic resin comprises a first opposing surface formed in a joint body perpendicular to the axial direction, and a second opposing surface formed in a union nut that opposes the first opposing surface. An engagement projection is provided in the second opposing surface that projects toward the first opposing surface. An engagement recess is provided in the first opposing surface such that the engagement projection engages with the engagement recess when the union nut has been tightened up to an appropriate position.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: November 27, 2018
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Makoto Fujii, Toshihide Iida
  • Patent number: D876595
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: February 25, 2020
    Assignee: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Tomohiro Adachi, Toshihide Iida, Tomoyuki Koike, Atsushi Nakano
  • Patent number: D894350
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: August 25, 2020
    Assignee: NIPPON PILLAR PACKING CO.
    Inventors: Tomoyuki Koike, Atsushi Nakano, Tomohiro Adachi, Toshihide Iida