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).
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Publication number: 20160281774Abstract: 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: ApplicationFiled: March 21, 2016Publication date: September 29, 2016Applicant: JTEKT CORPORATIONInventors: Atsushi NAGAI, Kenichi ONO
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Publication number: 20160281773Abstract: 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: ApplicationFiled: March 18, 2016Publication date: September 29, 2016Applicant: JTEKT CORPORATIONInventors: Atsushi NAGAI, Akiyuki SUZUKI
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Publication number: 20160281775Abstract: 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: ApplicationFiled: March 21, 2016Publication date: September 29, 2016Applicant: JTEKT CORPORATIONInventors: Atsushi NAGAI, Akiyuki SUZUKI
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Patent number: 9441674Abstract: 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: GrantFiled: December 23, 2014Date of Patent: September 13, 2016Assignee: JTEKT CORPORATIONInventors: Akiyuki Suzuki, Daisuke Okamoto, Hiroyuki Ohshima, Atsushi Nagai
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Patent number: 9299653Abstract: 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: GrantFiled: May 9, 2011Date of Patent: March 29, 2016Assignees: TDK CORPORATION, NORITAKE CO., LTD.Inventors: Minoru Satoh, Takehiro Yamashita, Atsushi Nagai, Yasuo Adachi
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Publication number: 20150247532Abstract: 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: ApplicationFiled: February 12, 2015Publication date: September 3, 2015Inventors: Akiyuki SUZUKI, Atsushi NAGAI
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Publication number: 20150176650Abstract: 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: ApplicationFiled: December 23, 2014Publication date: June 25, 2015Inventors: Akiyuki SUZUKI, Daisuke OKAMOTO, Hiroyuki OHSHIMA, Atsushi NAGAI
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Patent number: 8512601Abstract: 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: GrantFiled: January 28, 2010Date of Patent: August 20, 2013Assignee: Noritake Co., LimitedInventors: Takahiro Sugiyama, Atsushi Nagai, Ayumi Murakami
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Publication number: 20130058061Abstract: 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: ApplicationFiled: May 9, 2011Publication date: March 7, 2013Applicants: NORITAKE CO., LIMITED, TDK CORPORATIONInventors: Minoru Satoh, Takehiro Yamashita, Atsushi Nagai, Yasuo Adachi
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Publication number: 20110309312Abstract: 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: ApplicationFiled: January 28, 2010Publication date: December 22, 2011Applicant: NORITAKE CO., LIMITEDInventors: Takahiro Sugiyama, Atsushi Nagai, Ayumi Murakami
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Patent number: 8021821Abstract: 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: GrantFiled: January 26, 2009Date of Patent: September 20, 2011Assignee: Noritake Co., LimitedInventors: Atsushi Nagai, Kazutaka Nakayama
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Publication number: 20090197203Abstract: 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: ApplicationFiled: January 26, 2009Publication date: August 6, 2009Applicant: NORITAKE CO., LIMITEDInventors: Atsushi Nagai, Kazutaka Nakayama
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Publication number: 20090152492Abstract: 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: ApplicationFiled: August 8, 2006Publication date: June 18, 2009Inventors: Yasumasa Ohsora, Atsushi Nagai, Hisao Tanaka, Itsuhiro Fujii
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Publication number: 20090099263Abstract: 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: ApplicationFiled: May 11, 2007Publication date: April 16, 2009Inventors: Yotaro Izumi, Masafumi Kawamura, Koichi Kobayashi, Takeshi Endo, Atsushi Nagai, Makoto Shichinohe
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Patent number: 7487117Abstract: 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: GrantFiled: October 27, 1999Date of Patent: February 3, 2009Assignee: Amada Company, LimtedInventors: Toshio Tamura, Hitoshi Asaba, Yoshinori Onobori, Masahiro Nishioka, Yukio Fukui, Atsushi Nagai, Kiyotoshi Honda
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Patent number: 7115705Abstract: 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: GrantFiled: November 5, 2004Date of Patent: October 3, 2006Assignee: JSR CorporationInventors: Atsushi Nagai, Bungo Ochiai, Takeshi Endo
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Patent number: 7037448Abstract: 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: GrantFiled: October 14, 2003Date of Patent: May 2, 2006Assignee: Noritake Co., LimitedInventors: Atsushi Nagai, Hideyuki Tomita, Noriyuki Abe
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Publication number: 20050250926Abstract: 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: ApplicationFiled: November 5, 2004Publication date: November 10, 2005Applicant: JSR CorporationInventors: Atsushi Nagai, Bungo Ochiai, Takeshi Endo
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Publication number: 20040245507Abstract: 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: ApplicationFiled: March 4, 2004Publication date: December 9, 2004Inventors: Atsushi Nagai, Kazutaka Nakayama
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Patent number: 6826031Abstract: 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: GrantFiled: August 8, 2003Date of Patent: November 30, 2004Assignees: Noritake Co., Limited, TDK CorporationInventors: Atsushi Nagai, Minoru Sato