Patents by Inventor Atsushi Nagai

Atsushi Nagai 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: 20160281774
    Abstract: A tapered roller bearing includes an inner ring, an outer ring, a plurality of tapered rollers provided between the inner ring and the outer ring, and an annular cage. The cage has a small-diameter annular portion on a first side in an axial direction, a large-diameter annular portion on a second side in an axial direction, and a plurality of cage bar portions. The cage has pockets that are spaces each formed between the large-diameter annular portion and the small-diameter annular portion and between the adjacent cage bar portions in a circumferential direction and in which the tapered rollers are held. The cage further has a roller retaining portion that inhibits the tapered rollers housed in the pockets from falling outward in a radial direction. A recessed portion is formed in the small-diameter annular portion to reduce rigidity of the small-diameter annular portion.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 29, 2016
    Applicant: JTEKT CORPORATION
    Inventors: Atsushi NAGAI, Kenichi ONO
  • Publication number: 20160281773
    Abstract: A tapered roller bearing includes an outer ring having an outer-ring raceway surface that increases in diameter from a first side toward a second side in an axial direction, an inner ring having an inner-ring raceway surface and having a cone large face rib that is located on the second side of the inner ring in the axial direction, a plurality of tapered rollers, an annular cage, and a holding member provided on the second side of the outer ring in the axial direction to enable a lubricant inside the bearing to be held. The holding member has a cylindrical portion provided adjacently to the outer ring and a protruding portion protruding inward from the cylindrical portion in the radial direction. A slit is formed in the cylindrical portion to separate a radially inner portion, on which the protruding portion is provided, from a radially outer portion.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 29, 2016
    Applicant: JTEKT CORPORATION
    Inventors: Atsushi NAGAI, Akiyuki SUZUKI
  • Publication number: 20160281775
    Abstract: A tapered roller bearing includes an outer ring having an outer-ring raceway surface that increases in diameter from a first side toward a second side in an axial direction, an inner ring having an inner-ring raceway surface and also having a cone back face rib that is located on the second side of the inner ring in the axial direction and that protrudes outward in a radial direction, a plurality of tapered rollers, an annular cage, and a reservoir portion provided on the second side of the outer ring in the axial direction and having a recessed groove that is formed on an inner periphery of the reservoir portion and in which lubricant is stored. The recessed groove has a recess and protrusion at its bottom.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 29, 2016
    Applicant: JTEKT CORPORATION
    Inventors: Atsushi NAGAI, Akiyuki SUZUKI
  • Patent number: 9441674
    Abstract: A ball bearing includes an outer ring; an inner ring; a plurality of balls; and a cage that has an annular shape. Oil flows into an area between the outer ring and the inner ring from one side in an axial direction and flows out from the other side in the axial direction. The cage includes an annular portion provided on an oil inflow side, and bar portions extending from the annular portion toward an oil outflow side. An outer peripheral end portion of the annular portion is constituted by a corner portion at which an axial outer end face intersects with an outer peripheral surface. An axial position of a tip end of the corner portion is substantially same as an axial position of a side surface of the outer ring.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: September 13, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Akiyuki Suzuki, Daisuke Okamoto, Hiroyuki Ohshima, Atsushi Nagai
  • Patent number: 9299653
    Abstract: This electronic component is provided with an inorganic substrate, a conductor film formed on a surface of the substrate, and bonding wires bonded to a part of said conductor film, and wire bonding sections are formed on at least a part of the electronic component. The part of the conductor film at least forming the aforementioned wire bonding sections contains an Ag-based metal formed of Ag or an alloy having Ag as the main constituent and a metal oxide which coats said Ag-based metal and which has, as a constituent element, any of the elements selected from the group consisting of Al, Zr, Ti, Y, Ca, Mg, and Zn. The coating quantity of the metal oxide is a quantity corresponding to 0.02 to 0.1 parts by mass relative to 100 parts by mass of the aforementioned Ag-based metal.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: March 29, 2016
    Assignees: TDK CORPORATION, NORITAKE CO., LTD.
    Inventors: Minoru Satoh, Takehiro Yamashita, Atsushi Nagai, Yasuo Adachi
  • Publication number: 20150247532
    Abstract: A front bearing (tapered roller bearing) includes an inner ring, an outer ring, a plurality of tapered rollers, a cage, and a lubricating oil holding member. The lubricating oil holding member includes: a cylindrical portion having an axial length from a large diameter-side outer ring end surface to an end portion of the cage and capable of resisting a pressing force for press-fitting the outer ring; a fitting hook that is connected to one end of the cylindrical portion, that projects in the axial direction from an abutment surface which is in surface contact with the large diameter-side outer ring end surface, and that is fitted in an engagement groove portion provided in an outer peripheral surface of the outer ring; and a projection that projects radially inward from an inner peripheral surface of the cylindrical portion.
    Type: Application
    Filed: February 12, 2015
    Publication date: September 3, 2015
    Inventors: Akiyuki SUZUKI, Atsushi NAGAI
  • Publication number: 20150176650
    Abstract: A ball bearing includes an outer ring; an inner ring; a plurality of balls; and a cage that has an annular shape. Oil flows into an area between the outer ring and the inner ring from one side in an axial direction and flows out from the other side in the axial direction. The cage includes an annular portion provided on an oil inflow side, and bar portions extending from the annular portion toward an oil outflow side. An outer peripheral end portion of the annular portion is constituted by a corner portion at which an axial outer end face intersects with an outer peripheral surface. An axial position of a tip end of the corner portion is substantially same as an axial position of a side surface of the outer ring.
    Type: Application
    Filed: December 23, 2014
    Publication date: June 25, 2015
    Inventors: Akiyuki SUZUKI, Daisuke OKAMOTO, Hiroyuki OHSHIMA, Atsushi NAGAI
  • Patent number: 8512601
    Abstract: It is provided a paste composition for a solar cell electrode containing a conductive powder, a glass frit, and a vehicle, the glass frit being made of glass containing PbO, B2O3, and SiO2 at proportions within ranges of 46 to 57 (mol %), 1 to 7 (mol %), and 38 to 53 (mol %), respectively, in terms of oxide.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: August 20, 2013
    Assignee: Noritake Co., Limited
    Inventors: Takahiro Sugiyama, Atsushi Nagai, Ayumi Murakami
  • Publication number: 20130058061
    Abstract: This electronic component is provided with an inorganic substrate, a conductor film formed on a surface of the substrate, and bonding wires bonded to a part of said conductor film, and wire bonding sections are formed on at least a part of the electronic component. The part of the conductor film at least forming the aforementioned wire bonding sections contains an Ag-based metal formed of Ag or an alloy having Ag as the main constituent and a metal oxide which coats said Ag-based metal and which has, as a constituent element, any of the elements selected from the group consisting of Al, Zr, Ti, Y, Ca, Mg, and Zn. The coating quantity of the metal oxide is a quantity corresponding to 0.02 to 0.1 parts by mass relative to 100 parts by mass of the aforementioned Ag-based metal.
    Type: Application
    Filed: May 9, 2011
    Publication date: March 7, 2013
    Applicants: NORITAKE CO., LIMITED, TDK CORPORATION
    Inventors: Minoru Satoh, Takehiro Yamashita, Atsushi Nagai, Yasuo Adachi
  • Publication number: 20110309312
    Abstract: It is provided a paste composition for a solar cell electrode containing a conductive powder, a glass frit, and a vehicle, the glass frit being made of glass containing PbO, B2O3, and SiO2 at proportions within ranges of 46 to 57 (mol %), 1 to 7 (mol %), and 38 to 53 (mol %), respectively, in terms of oxide.
    Type: Application
    Filed: January 28, 2010
    Publication date: December 22, 2011
    Applicant: NORITAKE CO., LIMITED
    Inventors: Takahiro Sugiyama, Atsushi Nagai, Ayumi Murakami
  • Patent number: 8021821
    Abstract: A photosensitive conductive paste for transferring including a metal powder, an inorganic material powder, a photosensitive resin and a polymerization initiator, and to be applied onto a surface of a transfer support, comprising an acrylic resin or a rosin-based resin.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: September 20, 2011
    Assignee: Noritake Co., Limited
    Inventors: Atsushi Nagai, Kazutaka Nakayama
  • Publication number: 20090197203
    Abstract: A photosensitive conductive paste for transferring including a metal powder, an inorganic material powder, a photosensitive resin and a polymerization initiator, and to be applied onto a surface of a transfer support, comprising an acrylic resin or a rosin-based resin.
    Type: Application
    Filed: January 26, 2009
    Publication date: August 6, 2009
    Applicant: NORITAKE CO., LIMITED
    Inventors: Atsushi Nagai, Kazutaka Nakayama
  • Publication number: 20090152492
    Abstract: A p or n type thermoelectric material containing, as constituent elements, at least one of Bi and Sb and at least one of Te and Se. The n type one may further contain at least one element selected from I, Cl, Hg, Br, Ag, and Cu. The thermoelectric material has a sea-island microstructure, in which the sea phase is crystal grains having an average grain size of 5 ?m or smaller with their c-axes aligned unidirectionally, and the island phase is elongated crystal gains with an average length of 20 to 50 ?m that are randomly distributed in the sea phase. The island phase has a microstructure in which at least one of the constituent elements is segregated. A process of producing the thermoelectric material includes mixing a sinter material with a powder having a higher Te content than the sinter material and applying heat and pressure to the mixture.
    Type: Application
    Filed: August 8, 2006
    Publication date: June 18, 2009
    Inventors: Yasumasa Ohsora, Atsushi Nagai, Hisao Tanaka, Itsuhiro Fujii
  • Publication number: 20090099263
    Abstract: There is disclosed an organ-adhesion preventing agent comprising a chemically-crosslinked ?-polyglutamic acid as an effective ingredient, as well as a process for preventing organ from adhesion comprising a step of bringing the adhesion-preventing agent into contact with or depositing the same onto the surface of a local organ and optionally the neighborhood thereof to be prevented from the post-operative adhesion. According to the present invention, there is provided an adhesion-preventing agent which is capable of effectively preventing the surfaces of organs from adhesion, and which can be absorbed in the body with high safety and be produced with ease and has high practical usefulness, as well as a process for preventing organ from adhesion by using the adhesion-preventing agent.
    Type: Application
    Filed: May 11, 2007
    Publication date: April 16, 2009
    Inventors: Yotaro Izumi, Masafumi Kawamura, Koichi Kobayashi, Takeshi Endo, Atsushi Nagai, Makoto Shichinohe
  • Patent number: 7487117
    Abstract: The object of this invention is to provide a sales support system of sales subjects by which the date of delivery (delivery date) of sales subjects including commodities, products or service may be shortened. In order to achieve the object, the sales support system of this invention has a terminal system 51 which is provided with input means to input information related to the sales subject received from the customer and a display means which may display information related to the sales subject to the customer and an information management section 53 which is connected and may communicate with the terminal system and includes information related to the sales product and purchase order for the sales product and receives the purchase order of the sales subject from the terminal system and determines the facility which may provide the ordered sales subject.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: February 3, 2009
    Assignee: Amada Company, Limted
    Inventors: Toshio Tamura, Hitoshi Asaba, Yoshinori Onobori, Masahiro Nishioka, Yukio Fukui, Atsushi Nagai, Kiyotoshi Honda
  • Patent number: 7115705
    Abstract: A polythiourethane is produced by polymerizing a compound represented by formula (I) in the presence of a compound represented by formula (II) in which R1 represents a methyl group;
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: October 3, 2006
    Assignee: JSR Corporation
    Inventors: Atsushi Nagai, Bungo Ochiai, Takeshi Endo
  • Patent number: 7037448
    Abstract: The present invention provides a conductor composition that can form a conductor pattern having a good shape precision and a method for producing an electronic component using the composition. This conductor composition contains an organic vehicle, and a conductive powder (typically Ag powder) made of a noble metal or an alloy based on a noble metal, contained in a mass ratio of 80 mass % or more in the conductor composition, and having an average particle size of 0.8 ?m or less, and a ratio (D50/Dmin) of the medium value D50 of the particle sizes to the minimum value Dmin of the detectable particle sizes of 5 or less. This conductor composition has preferably a ratio (V1rpm/V10rpm) of the vicosity V1rpm 1 rpm and the viscosity V10rpm 10 rpm is in the range from 2 to 5.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: May 2, 2006
    Assignee: Noritake Co., Limited
    Inventors: Atsushi Nagai, Hideyuki Tomita, Noriyuki Abe
  • Publication number: 20050250926
    Abstract: A polythiourethane is produced by polymerizing a compound represented by formula (I) in the presence of a compound represented by formula (II) in which R1 represents a methyl group;
    Type: Application
    Filed: November 5, 2004
    Publication date: November 10, 2005
    Applicant: JSR Corporation
    Inventors: Atsushi Nagai, Bungo Ochiai, Takeshi Endo
  • Publication number: 20040245507
    Abstract: The present invention provides a conductor composition that can be formed into a film conductor having a resistance to soldering heat of a sufficient level in practical use without using a large amount of expensive precious metals such as Pd and without performing a Ni plating treatment or other treatments separately. This conductor composition is provided in the form of paste or ink having metal powder as the main component. This metal powder is constituted substantially by particulates of Ag or an Ag based alloy whose surface is coated with an organic metal compound. The organic metal compound is preferably an organic acid metal salt, metal alkoxide or a chelate compound having as a main constituent metal element any one selected from the group consisting of Al, Zr, Ti, Y, Ca, Mg and Zn.
    Type: Application
    Filed: March 4, 2004
    Publication date: December 9, 2004
    Inventors: Atsushi Nagai, Kazutaka Nakayama
  • Patent number: 6826031
    Abstract: A ceramic electronic component (20) having surface conductor films (23) and side-surface conductor films (24) excellent in burning shrinkage, bonding strength, solder heat resistance, solder wettability and the like. A method of producing a ceramic electronic component which uses a conductive paste containing as a main component Ag-based metal powder, the surface of the metal powder being coated with an organic metal compound or a metal oxide having as a constituting element any one selected from Al, Zr, Ti, Y, Ca, Mg and Zn, to form conductor films (23, 24 25) on a ceramic base material (21). A side-surface conductor film-forming paste differs form a surface conductor film-forming paste in that (1) the former paste has a relatively small coating amount of the organic metal compound or metal oxide and/or (2) contains either at least one kind of inorganic oxide powder as an accessory composition or a comparatively high percentage of the inorganic oxide powder.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: November 30, 2004
    Assignees: Noritake Co., Limited, TDK Corporation
    Inventors: Atsushi Nagai, Minoru Sato