Patents by Inventor Hiroshi Nakata

Hiroshi Nakata 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: 20150176110
    Abstract: A thick-walled high-strength hot rolled steel sheet has a high tensile strength TS of 521 MPa or more and excellent low-temperature toughness. The steel material forming the sheet contains 0.02%-0.08% C, 0.01%-0.10% Nb, and 0.001%-0.05% Ti and is heated; C, Ti, and Nb satisfies (Ti+(Nb/2))/C<4.
    Type: Application
    Filed: March 2, 2015
    Publication date: June 25, 2015
    Inventors: Chikara Kami, Hiroshi Nakata, Kinya Nakagawa
  • Publication number: 20150142877
    Abstract: A method in support of potential future delivery of digital content items over a data network includes obtaining at a server over the data network at least one digital content item for potential future delivery and delivery metadata pertaining to potential future delivery of the digital content item. The delivery metadata includes at least one recipient and a monitoring interval. The digital content item is stored by a processor of the server, and, during the monitoring interval, a user account associated with the digital content item is monitored by the processor for an occurrence of an inactivity benchmark. Upon a lapse of the monitoring interval without an occurrence of the inactivity benchmark, the digital content item is delivered to the at least one recipient. A system can be constructed to implement the method described herein.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventors: Hiroshi NAKATA, Tadashi TOMIYAMA, Masayoshi KIMURA, Jonathan B. LOEW, Jennifer DRUBIN
  • Publication number: 20150004050
    Abstract: A steel strip for coiled tubing contains, in terms of percent by mass, C: 0.10% or more and 0.16% or less, Si: 0.1% or more and 0.5% or less, Mn: 0.5% or more and 1.5% or less, P: 0.02% or less, S: 0.005% or less, Sol. Al: 0.01% or more and 0.07% or less, Cr: 0.4% or more and 0.8% or less, Cu: 0.1% or more and 0.5% or less, Ni: 0.1% or more and 0.3% or less, Mo: 0.1% or more and 0.2% or less, Nb: 0.01% or more and 0.04% or less, Ti: 0.005% or more and 0.03% or less, N: 0.005% or less, and the balance of Fe and inevitable impurities.
    Type: Application
    Filed: January 18, 2013
    Publication date: January 1, 2015
    Inventors: Yasuhiro Matsuki, Takahiko Ogura, Chikara Kami, Hiroshi Nakata
  • Publication number: 20140352852
    Abstract: The steel sheet has a chemical composition containing, by mass %, C: 0.04-0.08%, Si: 0.50% or less, Mn: 0.8-2.2%, P: 0.02% or less, S: 0.006% or less, Al: 0.1% or less, N: 0.008% or less, and Cr: 0.05-0.8%, and further Nb: 0.01-0.08%, V: 0.001-0.12%, and Ti: 0.005-0.04% in adjusted amounts, with the balance including Fe and incidental impurities. The steel sheet has a surface layer having a microstructure containing bainite as a main phase, martensite as a second phase in a volume fraction of 0.5-4%, and at lease one of ferrite phase, pearlite, and cementite as a third phase in a total volume fraction of 10% or less.
    Type: Application
    Filed: December 21, 2012
    Publication date: December 4, 2014
    Inventors: Hiroshi Nakata, Tomoaki Shibata, Chikara Kami
  • Publication number: 20140290807
    Abstract: A low yield ratio and high-strength hot rolled steel sheet having a composition containing, on a mass percent basis, 0.03% to 0.10% C, 0.10% to 0.50% Si, 1.4% to 2.2% Mn, 0.005 % to 0.10% Al, 0.02% to 0.10% Nb, 0.001% to 0.030% Ti, 0.05% to 0.50% Mo, 0.05% to 0.50% Cr, and 0.01% to 0.50% Ni, in which Moeq preferably satisfies the range of 1.4% to 2.2%; and a microstructure including a main phase that contains bainitic ferrite having an average grain size of 10 ?m or less and a secondary phase that contains massive martensite having an aspect ratio of less than 5.0 in an area ratio of 1.4% to 15%.
    Type: Application
    Filed: June 13, 2012
    Publication date: October 2, 2014
    Applicant: JFE Steel Corporation
    Inventors: Sota Goto, Hiroshi Nakata, Chikara Kami, Toshifumi Abe, Takato Tamai
  • Patent number: 8800624
    Abstract: A belt width of an intersecting belt 15a having the maximum belt width is set to 80% or more of the maximum width of a carcass line; a difference in belt widths between the intersecting belt 15a and an intersecting belt 15b is set in the range of 10 mm to 50 mm on one side of the belt in the width direction; the intersecting belt 15a is not narrower than the circumferential belt 14, and the circumferential belt 14 is not narrower than the intersecting belt 15b; and a pneumatic tire according to the present invention has an interposed rubber 16 having a thickness increasing toward the widthwise outer side of the tire to be 3 mm or more, and a side-lower rubber 17 having an elastic modulus less than the elastic modulus of a coating rubber coating the circumferential belt 14.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: August 12, 2014
    Assignee: Bridgestone Corporation
    Inventors: Hiroshi Nakata, Hideaki Minowa
  • Publication number: 20140216609
    Abstract: A steel material containing 0.01% to 0.07% C, 0.40% or less Si, 0.5% to 1.4% Mn, 0.1% or less Al, 0.01% to 0.15% Nb, 0.1% or less V, 0.03% or less Ti, and 0.008% or less N on a mass basis, Nb, V, and Ti satisfying Nb+V+Ti<0.15, Cm satisfying 0.12 or less, is heated to a heating temperature of 1,100° C. to 1,250° C., finish-rolled in such a way that the accumulative rolling reduction at a temperature of 930° C. or lower is 40% to 85% and the finished rolling temperature is 760° C. to 870° C., cooled to a cooling stop temperature of 500° C. or lower in terms of surface temperature at an average cooling rate of 30° C./s to 200° C./s in terms of thickness-wise center temperature, naturally cooled for more than 10 s after cooling is stopped, and coiled at a coiling temperature of 400° C. to 620° C.
    Type: Application
    Filed: June 27, 2012
    Publication date: August 7, 2014
    Applicant: JFE Steel Corporation
    Inventors: Hiroshi Nakata, Tomoaki Shibata
  • Patent number: 8784577
    Abstract: A high-tensile-strength hot-rolled steel sheet is provided having a composition which contains 0.02 to 0.08% C, 0.01 to 0.10% Nb, 0.001 to 0.05% Ti and Fe and unavoidable impurities as a balance, wherein the steel sheet contains C, Ti and Nb in such a manner that (Ti+(Nb/2))/C<4 is satisfied, and the steel sheet has a structure where a primary phase of the structure at a position 1 mm away from a surface in a sheet thickness direction is one selected from a group consisting of a ferrite phase, tempered martensite and a mixture structure of a ferrite phase and tempered martensite, a primary phase of the structure at a sheet thickness center position is formed of a ferrite phase, and a difference ?V between a structural fraction (volume %) of a secondary phase at the position 1 mm away from the surface in the sheet thickness direction and a structural fraction (volume %) of a secondary phase at the sheet thickness center position is 2% or less.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: July 22, 2014
    Assignee: JFE Steel Corporation
    Inventors: Chikara Kami, Hiroshi Nakata, Kinya Nakagawa
  • Publication number: 20140144552
    Abstract: A high-tensile-strength hot-rolled steel sheet is provided having a composition which contains 0.02 to 0.08% C, 0.01 to 0.10% Nb, 0.001 to 0.05% Ti and Fe and unavoidable impurities as a balance, wherein the steel sheet contains C, Ti and Nb in such a manner that (Ti+(Nb/2))/C<4 is satisfied, and the steel sheet has a structure where a primary phase of the structure at a position 1 mm away from a surface in a sheet thickness direction is one selected from a group consisting of a ferrite phase, tempered martensite and a mixture structure of a ferrite phase and tempered martensite, a primary phase of the structure at a sheet thickness center position is formed of a ferrite phase, and a difference ?V between a structural fraction (volume %) of a secondary phase at the position 1 mm away from the surface in the sheet thickness direction and a structural fraction (volume %) of a secondary phase at the sheet thickness center position is 2% or less.
    Type: Application
    Filed: January 31, 2014
    Publication date: May 29, 2014
    Applicant: JFE Steel Corporation
    Inventors: Chikara Kami, Hiroshi Nakata, Kinya Nakagawa
  • Publication number: 20140053964
    Abstract: The present invention relates to a method of forming at least one circumferential belt layer of a pneumatic tire comprising: winding the strip for a half length of an outer circumferential length of the crown portion of the carcass along the tire equatorial plane from a widthwise inner side of the belt end region; winding the strip for the remaining half length while shifting the strip for the width of the strip from a widthwise inner to outer side; winding the strip for the outer circumferential length of the crown portion of the carcass along the tire equatorial plane; winding the strip for the half length of the outer circumferential length of the crown portion of the carcass while shifting the strip for the width of the strip from the widthwise outer to inner side; and winding the strip for the remaining half length along the tire equatorial plane.
    Type: Application
    Filed: October 31, 2013
    Publication date: February 27, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yusuke YOSHIKAWA, Hiroshi NAKATA, Takashi OONO, Makoto TSURUTA
  • Patent number: 8606121
    Abstract: Disclosed is a remote management system including: a first image forming device; a second image forming device which is communicable with the first image forming device by using a first communication system; and a remote management server which is communicable with the second image forming device by using a second communication system, wherein the remote management server transmits setting information for the first image forming device to the second image forming device communicable with the first image forming device by using the first communication system, by using the second communication system, the second image forming device transmits the setting information received from the remote management server, to the first image forming device by using the first communication system, and the first image forming device carries out a setting operation in accordance with the setting information received from the second image forming device.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: December 10, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventor: Hiroshi Nakata
  • Publication number: 20120216935
    Abstract: A belt width of an intersecting belt 15a having the maximum belt width is set to 80% or more of the maximum width of a carcass line; a difference in belt widths between the intersecting belt 15a and an intersecting belt 15b is set in the range of 10 mm to 50 mm on one side of the belt in the width direction; the intersecting belt 15a is not narrower than the circumferential belt 14, and the circumferential belt 14 is not narrower than the intersecting belt 15b; and a pneumatic tire according to the present invention has an interposed rubber 16 having a thickness increasing toward the widthwise outer side of the tire to be 3 mm or more, and a side-lower rubber 17 having an elastic modulus less than the elastic modulus of a coating rubber coating the circumferential belt 14.
    Type: Application
    Filed: September 24, 2010
    Publication date: August 30, 2012
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Hiroshi Nakata, Hideaki Minowa
  • Publication number: 20120195603
    Abstract: Disclosed is a remote management system including: a first image forming device; a second image forming device which is communicable with the first image forming device by using a first communication system; and a remote management server which is communicable with the second image forming device by using a second communication system, wherein the remote management server transmits setting information for the first image forming device to the second image forming device communicable with the first image forming device by using the first communication system, by using the second communication system, the second image forming device transmits the setting information received from the remote management server, to the first image forming device by using the first communication system, and the first image forming device carries out a setting operation in accordance with the setting information received from the second image forming device.
    Type: Application
    Filed: January 18, 2012
    Publication date: August 2, 2012
    Applicant: Konica Minolta Business Technologies, Inc.
    Inventor: Hiroshi NAKATA
  • Publication number: 20120180925
    Abstract: The present invention relates to a method of forming at least one circumferential belt layer of a pneumatic tire comprising: winding the strip for a half length of an outer circumferential length of the crown portion of the carcass along the tire equatorial plane from a widthwise inner side of the belt end region; winding the strip for the remaining half length while shifting the strip for the width of the strip from a widthwise inner to outer side; winding the strip for the outer circumferential length of the crown portion of the carcass along the tire equatorial plane; winding the strip for the half length of the outer circumferential length of the crown portion of the carcass while shifting the strip for the width of the strip from the widthwise outer to inner side; and winding the strip for the remaining half length along the tire equatorial plane.
    Type: Application
    Filed: January 17, 2012
    Publication date: July 19, 2012
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yusuke YOSHIKAWA, Hiroshi NAKATA, Takashi OONO, Makoto TSURUTA
  • Publication number: 20110284137
    Abstract: A high-tensile-strength hot-rolled steel sheet is provided having a composition which contains 0.02 to 0.08% C, 0.01 to 0.10% Nb, 0.001 to 0.05% Ti and Fe and unavoidable impurities as a balance, wherein the steel sheet contains C, Ti and Nb in such a manner that (Ti+(Nb/2))/C<4 is satisfied, and the steel sheet has a structure where a primary phase of the structure at a position 1 mm away from a surface in a sheet thickness direction is one selected from a group consisting of a ferrite phase, tempered martensite and a mixture structure of a ferrite phase and tempered martensite, a primary phase of the structure at a sheet thickness center position is formed of a ferrite phase, and a difference ?V between a structural fraction (volume %) of a secondary phase at the position 1 mm away from the surface in the sheet thickness direction and a structural fraction (volume %) of a secondary phase at the sheet thickness center position is 2% or less.
    Type: Application
    Filed: January 29, 2010
    Publication date: November 24, 2011
    Applicant: JFE STEEL CORPORATION
    Inventors: Chikara Kami, Hiroshi Nakata, Kinya Nakagawa
  • Publication number: 20110240198
    Abstract: An object of the present invention is to provide a pneumatic tire capable of reducing rolling resistance, while maintaining good durability of a belt.
    Type: Application
    Filed: December 15, 2009
    Publication date: October 6, 2011
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yasutaka Suda, Hiroshi Nakata, Yusuko Yoshikawa, Takashi Ono, Makoto Tsuruta
  • Publication number: 20110126944
    Abstract: A thick-walled high-strength hot rolled steel sheet has a high tensile strength TS of 521 MPa or more and excellent low-temperature toughness. The steel material forming the sheet contains 0.02%-0.08% C, 0.01%-0.10% Nb, and 0.001%-0.05% Ti and is heated; C, Ti, and Nb satisfies (Ti+(Nb/2))/C<4.
    Type: Application
    Filed: July 31, 2009
    Publication date: June 2, 2011
    Applicant: JFE STEEL CORPORATION
    Inventors: Chikara Kami, Hiroshi Nakata, Kinya Nakagawa
  • Patent number: 7879287
    Abstract: A hot-rolled steel sheet for high-strength ERW pipes contains about 0.02% to about 0.06% C; about 0.05% to about 0.50% Si; about 0.5% to about 1.5% Mn; about 0.010% or less P; about 0.0010% or less S; about 0.01% to about 0.10% Al; about 0.01% to about 0.10% Nb; about 0.001% to about 0.025% Ti; about 0.001% to about 0.005% Ca; about 0.003% or less 0; and about 0.005% or less N, and at least one element selected from the group consisting of about 0.01% to about 0.10% V; about 0.01% to about 0.50% Cu; about 0.01% to about 0.50% Ni; and about 0.01% to about 0.50% Mo on the basis of mass. The group of C, Si, Mn, Cu, Ni, Mo, and V and the group of Ca, 0, and S satisfy specific relationships, and the microstructure of the steel sheet is composed of about 95% by volume or more bainitic ferrite.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: February 1, 2011
    Assignee: JFE Steel Corporation
    Inventors: Takashi Kobayashi, Hiroshi Nakata, Chikara Kami, Toru Inazumi, Shuji Kawamura
  • Publication number: 20100332879
    Abstract: An image forming apparatus connected to a plurality of computer apparatuses via a network including; a detecting section detecting the state of at least one prescribed computer apparatus out of the plurality of the computer apparatuses; and a power supply control section controlling a power mode based on the state of the prescribed computer apparatus detected by the detecting section.
    Type: Application
    Filed: June 17, 2010
    Publication date: December 30, 2010
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventor: Hiroshi NAKATA
  • Patent number: 7558700
    Abstract: In a failure diagnosis apparatus for a refrigerating cycle, a plurality of instrumentation amounts concerning the refrigerant such as the pressure and temperature of the refrigerating cycle apparatus or other instrumentation amounts are detected, the state quantities such as composite variables are acquired by making the arithmetic operation on these instrumentation amounts, and whether the apparatus is normal or abnormal is judged employing the arithmetic operation results. If learning is made during the normal operation, a current state is judged, and if learning is made by compulsorily performing the abnormal operation, or if the abnormal operating condition is operated during the current operation, a failure foretaste such as a critical operation can be made from a change in the Mahalanobis distance. Thereby, the secure diagnosis can be implemented with a simple constitution.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: July 7, 2009
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Koji Yamashita, Masaki Toyoshima, Hiroshi Nakata