Patents by Inventor Kazunori Seki
Kazunori Seki 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: 20240145356Abstract: A lead frame includes a plurality of lead portions. At least a part of an upper surface of the lead portion and a sidewall surface of the lead portion is a rough surface having been subjected to roughening treatment. A value of a* in a CIELab color space of the rough surface is within a range from 12 to 19, and a value of b* is within a range from 12 to 17.Type: ApplicationFiled: September 1, 2022Publication date: May 2, 2024Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Masahiro NAGATA, Kazuhiro SHINOZAKI, Masahiro YAMADA, Daisuke OKUYAMA, Chiaki HATSUTA, Kentarou SEKI, Hideto MATSUI, Kazunori OOUCHI
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Patent number: 11767269Abstract: To improve the stability of spray application of a monolithic refractory in which a water injector is disposed in a material carrier pipe extending from a material supply device to a distal spray nozzle, and application water is injected from the water injector into a spray material that is being carried through the material carrier pipe, a ratio of a flow volume of an application water carrier gas for carrying the application water to be introduced into the water injector to a flow volume of a spray material carrier gas for carrying the spray material is set to 0.07 to 2, and a compressibility index of the spray material is set to 32% or less. Alternatively, a ratio of a flow volume of an application water carrier gas for carrying the application water to be introduced into the water injector to an application water volume is set to 100 to 1,000.Type: GrantFiled: March 6, 2019Date of Patent: September 26, 2023Assignee: KROSAKIHARIMA CORPORATIONInventors: Kazuhiro Honda, Kazunori Seki, Yoshitaka Ishii, Takafumi Yamada, Norikazu Shirama, Tsubasa Nakamichi
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Publication number: 20230107517Abstract: A facility cost and a remodeling cost can be reduced, and further, a steel sheet pile product with high dimensional accuracy is produced by suppressing occurrence of warpage of a material to be rolled during bending. There is provided a bending device which produces a steel sheet pile by performing bending on a material to be rolled after being subjected to rough rolling, intermediate rolling, and finish rolling in a hot state, in a direction of increasing a cross sectional height of the material to be rolled, the bending device including: a forming stand including a forming caliber configured by an upper caliber roll and a lower caliber roll; and a drive unit driving either the upper caliber roll or the lower caliber roll.Type: ApplicationFiled: March 10, 2021Publication date: April 6, 2023Applicant: NIPPON STEEL CORPORATIONInventors: Hiroshi YAMASHITA, Shinya HAYASHI, Kazunori SEKI
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Publication number: 20220413379Abstract: A technique that enables production of pellicle membranes that are better resistant to breakage when subjected to force exerted thereon in the thickness direction thereof and that have high transmittance to light. A pellicle membrane of the present invention includes a plurality of laminated layers, where at least one of the layers is provided with at least one hole having a width or diameter of 10 nm to 500 nm.Type: ApplicationFiled: August 24, 2022Publication date: December 29, 2022Applicant: TOPPAN INC.Inventors: Naoya TAKADA, Kazunori SEKI, Yutaka KODERA
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Publication number: 20220260902Abstract: A technique that can achieve a pellicle film made of carbon nanotubes and having high in-plane transmittance uniformity. The pellicle film contains a plurality of first carbon nanotubes extending in a first direction and arrayed in the radial direction, and a plurality of second carbon nanotubes extending in a second direction intersecting the first direction, and arrayed in their radial direction.Type: ApplicationFiled: May 2, 2022Publication date: August 18, 2022Applicant: TOPPAN INC.Inventors: Naoya TAKADA, Kazunori SEKI, Yutaka KODERA
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Publication number: 20210017088Abstract: To improve the stability of spray application of a monolithic refractory in which a water injector is disposed in a material carrier pipe extending from a material supply device to a distal spray nozzle, and application water is injected from the water injector into a spray material that is being carried through the material carrier pipe, a ratio of a flow volume of an application water carrier gas for carrying the application water to be introduced into the water injector to a flow volume of a spray material carrier gas for carrying the spray material is set to 0.07 to 2, and a compressibility index of the spray material is set to 32% or less. Alternatively, a ratio of a flow volume of an application water carrier gas for carrying the application water to be introduced into the water injector to an application water volume is set to 100 to 1,000.Type: ApplicationFiled: March 6, 2019Publication date: January 21, 2021Applicant: KROSAKIHARIMA CORPORATIONInventors: Kazuhiro HONDA, Kazunori SEKI, Yoshitaka ISHII, Takafumi YAMADA, Norikazu SHIRAMA, Tsubasa NAKAMICHI
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Publication number: 20200338608Abstract: Regarding each rolling mill, a rolling torque Gi before biting into a downstream stand is stored, the peripheral velocity of a most downstream stand Rn is controlled to be Gn?1=Gn?1* after biting into Rn, and a rolling torque Gn** of Rn after tension is stabilized is stored. After that, the peripheral velocity of a rolling mill Ri is controlled to be Gi=Gi* toward an upstream side, and the peripheral velocity of a rolling mill Rk at a downstream side of the rolling mill Ri is controlled to keep Gk=Gk** (k=i+1 to n) so that a rolling torque of a most upstream rolling mill R1 becomes equal to a stored G1*. Stabilization of material passage and improvement in accuracy of a product dimension are enabled by controlling tension between stands with high accuracy by using a simple control system without using table values or the like by each rolling condition even under a condition where a distance between stands is short.Type: ApplicationFiled: December 27, 2018Publication date: October 29, 2020Applicant: NIPPON STEEL CORPORATIONInventors: Kazunori SEKI, Hiroyuki ISHIBASHI
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Publication number: 20200269294Abstract: To suppress the occurrence of a defective shape such as a flange wave or the like by reverse rolling so as to improve the product dimension accuracy and stability of rolling. A production method for forming a steel sheet pile with flanges from a material to be rolled by caliber roll rolling, includes a step of performing reverse rolling on the material to be rolled by a same caliber, wherein: the step of performing reverse rolling includes a step of forming first flange parts across a neutral line and second and third flange parts arranged on both sides of the first flange parts; the caliber includes first flange facing portions for forming the first flange parts, second flange facing portions for forming the second flange parts, and third flange facing portions for forming the third flange parts; and an inclination angle of the first flange facing portion with respect to a horizontal plane is larger than inclination angles of the second and third flange facing portions.Type: ApplicationFiled: April 3, 2018Publication date: August 27, 2020Applicant: NIPPON STEEL CORPORATIONInventors: Shinya HAYASHI, Hiroshi YAMASHITA, Kazunori SEKI, Masanori KAWAI
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Publication number: 20140067476Abstract: A customer information collection means collects sales information from POS data of a customer, and creates customer count data associating the collected sales information with personal information of the customer. A segmentation analysis means clusters the customer into a segment per lifestyle of the customer via k-means and Ward on the basis of the customer count data. A classification rule creation means creates a rule for uniquely deciding a segment from customer information via a decision tree analysis on the basis of a segment calculation result. A factor analysis means makes a factor analysis of a sales rate of segment-based customer count data, and extracts a characteristic factor indicating a characteristic of a product as a product characteristic/customer characteristic per product group.Type: ApplicationFiled: August 30, 2013Publication date: March 6, 2014Inventors: Kazunori Seki, Taishi Miyao, Yuma Yano, Shu Toyoshima
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Patent number: 8469284Abstract: This pearlitic rail consists of a steel including: in terms of percent by mass, C: 0.65% to 1.20%; Si: 0.05% to 2.00%; Mn: 0.05% to 2.00%; and REM: 0.0005% to 0.0500%, with the balance being Fe and inevitable impurities, wherein, in a head portion of the rail, a head surface portion which ranges from surfaces of head corner portions and a head top portion to a depth of 10 mm has a pearlite structure, and the hardness Hv of the head surface portion is in a range of 320 to 500.Type: GrantFiled: January 21, 2010Date of Patent: June 25, 2013Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Masaharu Ueda, Takashi Morohoshi, Kazunori Seki
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Patent number: 8210019Abstract: The invention provides a method for producing a pearlitic rail by rough hot rolling and finish hot rolling a billet. In the finish hot rolling, the billet is rolled at a rail head surface temperature in a range of not higher than 900° C. to not lower than the Ar3 transformation point or Arcm transformation point to produce a head cumulative reduction of area of not less than 20%, where the reaction force ratio of the finish rolling is not less than 1.25. The finish hot rolled rail head surface is subjected to accelerated cooling or spontaneous cooling to a temperature of 550° C. or less at a cooling rate of 2 to 30° C./seconds, thereby refining the rail head structure to attain a hardness within a predetermined range, and improving rail wear resistance and ductility.Type: GrantFiled: July 24, 2007Date of Patent: July 3, 2012Assignee: Nippon Steel CorporationInventors: Masaharu Ueda, Kazunori Seki, Takuya Sato, Takeshi Yamamoto
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Publication number: 20110303756Abstract: This pearlitic rail consists of a steel including: in terms of percent by mass, C: 0.65% to 1.20%; Si: 0.05% to 2.00%; Mn: 0.05% to 2.00%; and REM: 0.0005% to 0.0500%, with the balance being Fe and inevitable impurities, wherein, in a head portion of the rail, a head surface portion which ranges from surfaces of head corner portions and a head top portion to a depth of 10 mm has a pearlite structure, and the hardness Hv of the head surface portion is in a range of 320 to 500.Type: ApplicationFiled: January 21, 2010Publication date: December 15, 2011Inventors: Masaharu Ueda, Takashi Morohoshi, Kazunori Seki
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Publication number: 20110155821Abstract: This pearlite rail consists of a steel including: in terms of percent by mass, C: 0.65 to 1.20%; Si: 0.05 to 2.00%; Mn: 0.05 to 2.00%; P?0.0150%; S?0.0100%; Ca: 0.0005 to 0.0200%, and Fe and inevitable impurities as the balance, wherein a head surface portion which ranges from surfaces of head corner portions and a head top portion to a depth of 10 mm has a pearlite structure, a hardness Hv of the pearlite structure is in a range of 320 to 500, and Mn sulfide-based inclusions having major lengths in a range of 10 to 100 ?m are present at an amount per unit area in a range of 10 to 200/mm2 in a cross-section taken along a lengthwise direction in the pearlite structure.Type: ApplicationFiled: October 30, 2009Publication date: June 30, 2011Inventors: Masaharu Ueda, Kazunori Seki, Takuya Satou, Takeshi Yamamoto
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Publication number: 20090314049Abstract: The invention provides a method for producing a pearlitic rail by subjecting to at least rough hot rolling and finish hot rolling a billet comprising, in mass %, C: 0.65-1.20%, Si: 0.05-2.00%, Mn: 0.05-2.00%, and a remainder of iron an unavoidable impurities, wherein the finish hot rolling is conducted by rolling at a rail head surface temperature in a range of not higher than 900° C. to not lower than Ar3 transformation point or Arcm transformation point to produce a head cumulative reduction of area of not less than 20% and a reaction force ratio of not less than 1.25, and the finish hot rolled rail head surface is subjected to accelerated cooling or spontaneous cooling to at least 550° C. at a cooling rate of 2 to 30° C./sec, thereby refining the rail head structure to attain a hardness within a predetermined range and improving rail wear resistance and ductility.Type: ApplicationFiled: July 24, 2007Publication date: December 24, 2009Inventors: Masaharu Ueda, Kazunori Seki, Takuya Sato, Takeshi Yamamoto
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Publication number: 20080301605Abstract: A method and a device for automatically calibrating a light intensity measurement device is disclosed. The device includes an optical switch for switching a route of output from an optical intensity modulator, an optical attenuator arranged on a first waveguide, a second waveguide, a light intensity measurement device, a control device for receiving light intensity information measured by the light intensity measurement device and controlling the signal to be applied to the optical intensity modulator, and a signal source for receiving a control signal of the control device and adjusting the signal to be applied to the optical intensity modulator.Type: ApplicationFiled: May 30, 2008Publication date: December 4, 2008Applicant: Inventure Inc.Inventors: Hironori Ando, Takashi Nakamura, Tatsuya Nakamura, Kazunori Seki
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Patent number: 5798754Abstract: The present invention relates to a resilient hollow grip cap for removable mounting on the top of a computer control device i.e., a finger actuated pointing stick. The cap has a plurality of short fibers adhered to its outer surface and extending outwardly away from the surface of the cap.Type: GrantFiled: September 30, 1994Date of Patent: August 25, 1998Assignee: International Business Machines CorporationInventors: Edwin Joseph Selker, Kazunori Seki, Michio Suzuki, Kenshin Yonemochi