Patents by Inventor Kunio Kondo

Kunio Kondo 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: 20210293467
    Abstract: A cryogenic refrigerator includes a cooling unit and a magnetic shielding unit. The cooling unit is configured to cool a refrigerant. The magnetic shielding unit covers around. the cooling unit.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 23, 2021
    Applicants: Ricoh Company, Ltd., Taiyo Nippon Sanso Corporation
    Inventors: Jun KONDO, Kunio KAZAMI, Hiroshi KUBOTA, Shunichi MATSUMOTO, Takahiro UMENO, Syoji TAKAMI, Takuji ITO
  • Publication number: 20210293475
    Abstract: A helium circulation system includes a refrigerator configured to cool a gas refrigerant into a liquid refrigerant; a first path configured to feed the liquid refrigerant from the refrigerator to a Dewar; a second path configured to feed the gas refrigerant from the Dewar to a vaporized gas collector via the refrigerator; a third path configured to feed the gas refrigerant from the vaporized gas collector to the refrigerator; a fourth path configured to feed the gas refrigerant from the Dewar to the vaporized gas collector without via the refrigerator; and a control unit configured to feed the liquid refrigerant through the first path while feeding the gas refrigerant through the third path when the refrigerator is driven, and feed the gas refrigerant through the second path while feeding the gas refrigerant the fourth path, when the refrigerator is stopped.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 23, 2021
    Applicants: Ricoh Company, Ltd., Taiyo Nippon Sanso Corporation
    Inventors: Shunichi MATSUMOTO, Kunio KAZAMI, Jun KONDO, Hiroshi KUBOTA, Takahiro UMENO, Shoji TAKAMI, Kenji IWAMOTO, Yujiro HOTEI
  • Publication number: 20210222083
    Abstract: A method for inspecting a lubricant oil composition containing a base oil and a fullerene, the method including: measuring at least one of a lamellar length of the lubricating oil composition and a most abundant diameter in a particle size distribution obtained by a dynamic light scattering method, and selecting the lubricating oil composition whose measured value is within a set range.
    Type: Application
    Filed: December 4, 2018
    Publication date: July 22, 2021
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryuji MONDEN, Yu GAO, Masumi KURITANI, Kunio KONDO
  • Publication number: 20200339904
    Abstract: The lubricating oil composition includes a base oil and a fullerene adduct.
    Type: Application
    Filed: October 24, 2018
    Publication date: October 29, 2020
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryuji MONDEN, Yu GAO, Kunio KONDO, Masumi KURITANI
  • Patent number: 9783876
    Abstract: A stainless steel for oil wells which has excellent high-temperature corrosion resistance and can stably obtain a strength of not less than 758 MPa is provided. The stainless steel for oil wells contains, by masse, C: not more than 0.05%, Si: not more than 1.0%, Mn: 0.01 to 1.0%, P: not more than 0.05%, S: less than 0.002%, Cr: 16 to 18%, Mo: 1.8 to 3%, Cu: 1.0 to 3.5%, Ni: 3.0 to 5.5%, Co: 0.01 to 1.0%, Al: 0.001 to 0.1%, O: not more than 0.05%, and N: not more than 0.05%, the balance being Fe and impurities, and satisfies Formulas (1) and (2): Cr+4Ni+3Mo+2Cu?44??(1) Cr+3Ni+4Mo+2Cu/3?46??(2) where each symbol of element in Formulas (1) and (2) is substituted by the content (mass %) of a corresponding element.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: October 10, 2017
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Shinjiro Nakatsuka, Taro Ohe, Hisashi Amaya, Hideki Takabe, Yohei Otome, Yusaku Tomio, Masanao Seo, Tomohiko Omura, Kunio Kondo
  • Patent number: 9644048
    Abstract: There is provided a material for an anode buffer lay which permits the use of an organic solvent as a solvent an anode buffer layer-forming solution, and is capable forming an anode buffer layer that does not dissolve even win coated with a luminescent layer-forming material solution containing an organic solvent as a solvent, and which is capable of producing an organic EL element having high electrical power efficiency and long life.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: May 9, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Haruka Osako, Nobuhiro Natori, Tsuyoshi Katoh, Kunio Kondo, Yosuke Fukuchi
  • Patent number: 9322087
    Abstract: The chemical composition of a stainless steel in accordance with the present invention consists of C: not more than 0.05%, Si: not more than 0.5%, Mn: 0.01 to 0.5%, P: not more than 0.04%, S: not more than 0.01%, Cr: more than 16.0 and not more than 18.0%, Ni: more than 4.0 and not more than 5.6%, Mo: 1.6 to 4.0%, Cu: 1.5 to 3.0%, Al: 0.001 to 0.10%, and N: not more than 0.050%, the balance being Fe and impurities, and satisfies Formulas (1) and (2). Also, the micro-structure thereof contains a martensitic phase and a ferritic phase having a volume ratio of 10 to 40%, and the ferritic phase distribution ratio is higher than 85%. Cr+Cu+Ni+Mo ?25.5??(1) ?8 ?30(C+N)+0.5Mn+Ni+Cu/2+8.2?1.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: April 26, 2016
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Hideki Takabe, Kunio Kondo, Hisashi Amaya, Taro Ohe, Yohei Otome
  • Patent number: 9303296
    Abstract: A high-strength stainless steel for oil well having corrosion resistance excellent in a high-temperature environment, having excellent SSC resistance at normal temperature, and having better workability than 13% Cr steels has a chemical composition containing, by mass percent, C: at most 0.05%, Si: at most 1.0%, Mn: at most 0.3%, P: at most 0.05%, S: less than 0.002%, Cr: over 16% and at most 18%, Mo: 1.5 to 3.0%, Cu: 1.0 to 3.5%, Ni: 3.5 to 6.5%, Al: 0.001 to 0.1%, N: at most 0.025%, and O: at most 0.01%, the balance being Fe and impurities, a microstructure containing a martensite phase, 10 to 48.5%, by volume ratio, of a ferrite phase and at most 10%, by volume ratio, of a retained austenite phase, yield strength of at least 758 MPa and uniform elongation of at least 10%.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: April 5, 2016
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Taro Ohe, Hisashi Amaya, Hideki Takabe, Kunio Kondo, Yohei Otome
  • Patent number: 9175360
    Abstract: There is provided a method for manufacturing a seamless steel pipe for line pipe, capable of improving the toughness of the seamless steel pipe for line pipe. A round billet having a chemical composition, by mass percent, of C: 0.02 to 0.15%, Si: at most 0.5%, and Mn: 0.5 to 2.5%, the balance being Fe and impurities, is heated. The heated round billet is piercing-rolled to produce a hollow shell. The hollow shell is elongated and rolled and sized to produce a seamless steel pipe. The seamless steel pipe is water cooled, and the water cooling is stopped when the temperature of the seamless steel pipe reaches at most 450° C. The water-cooled seamless steel pipe is quenched, and the quenched seamless steel pipe is tempered.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: November 3, 2015
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Keisuke Hitoshio, Kunio Kondo, Yuji Arai
  • Publication number: 20150307972
    Abstract: The chemical composition of a stainless steel in accordance with the present invention consists of C: not more than 0.05%, Si: not more than 0.5%, Mn: 0.01 to 0.5%, P: not more than 0.04%, S: not more than 0.01%, Cr: more than 16.0 and not more than 18.0%, Ni: more than 4.0 and not more than 5.6%, Mo: 1.6 to 4.0%, Cu: 1.5 to 3.0%, Al: 0.001 to 0.10%, and N: not more than 0.050%, the balance being Fe and impurities, and satisfies Formulas (1) and (2). Also, the micro-structure thereof contains a martensitic phase and a ferritic phase having a volume ratio of 10 to 40%, and the ferritic phase distribution ratio is higher than 85%. Cr+Cu+Ni+Mo 25.5??(1) ?8 ?30(C+N)+0.5Mn+Ni+Cu/2+8.2?1.
    Type: Application
    Filed: July 8, 2015
    Publication date: October 29, 2015
    Inventors: Hideki TAKABE, Kunio KONDO, Hisashi AMAYA, Taro OHE, Yohei OTOME
  • Patent number: 9109268
    Abstract: The chemical composition of a stainless steel in accordance with the present invention consists of C: not more than 0.05%, Si: not more than 0.5%, Mn: 0.01 to 0.5%, P: not more than 0.04%, S: not more than 0.01%, Cr: more than 16.0 and not more than 18.0%, Ni: more than 4.0 and not more than 5.6%, Mo: 1.6 to 4.0%, Cu: 1.5 to 3.0%, Al: 0.001 to 0.10%, and N: not more than 0.050%, the balance being Fe and impurities, and satisfies Formulas (1) and (2). Also, the micro-structure thereof contains a martensitic phase and a ferritic phase having a volume ratio of 10 to 40%, and the ferritic phase distribution ratio is higher than 85%. Cr+Cu+Ni+Mo?25.5??(1) ?8?30(C+N)+0.5Mn+Ni+Cu/2+8.2?1.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: August 18, 2015
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Hideki Takabe, Kunio Kondo, Hisashi Amaya, Taro Ohe, Yohei Otome
  • Patent number: 9090957
    Abstract: A martensitic stainless steel oil country tubular good contains, by mass, 0.005% to 0.1% C, 0.05% to 1% Si, 1.5% to 5% Mn, at most 0.05% P, at most 0.01% S, 9% to 13% Cr, at most 0.5% Ni, at most 2% Mo, at most 2% Cu, 0.001% to 0.1% Al, and 0.001% to 0.1% N, with the balance being Fe and impurities, and the pipe has a Cr-depleted region under the surface. The martensitic stainless steel oil country tubular good according to the present invention does not have a passive film on the surface and corrodes wholly at low speed. In addition, the Ni content is reduced, which allows uneven corrosion to be prevented. Therefore, SCC can be prevented from being generated in spite of the presence of a Cr-depleted region.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: July 28, 2015
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Hisashi Amaya, Kunio Kondo, Masakatsu Ueda
  • Publication number: 20150047831
    Abstract: A stainless steel for oil wells which has excellent high-temperature corrosion resistance and can stably obtain a strength of not less than 758 MPa is provided. The stainless steel for oil wells contains, by masse, C: not more than 0.05%, Si: not more than 1.0%, Mn: 0.01 to 1.0%, P: not more than 0.05%, S: less than 0.002%, Cr: 16 to 18%, Mo: 1.8 to 3%, Cu: 1.0 to 3.5%, Ni: 3.0 to 5.5%, Co: 0.01 to 1.0%, Al: 0.001 to 0.1%, O: not more than 0.05%, and N: not more than 0.05%, the balance being Fe and impurities, and satisfies Formulas (1) and (2): Cr+4Ni+3Mo+2Cu?44??(1) Cr+3Ni+4Mo+2Cu/3?46??(2) where each symbol of element in Formulas (1) and (2) is substituted by the content (mass %) of a corresponding element.
    Type: Application
    Filed: February 27, 2013
    Publication date: February 19, 2015
    Inventors: Shinjiro Nakatsuka, Taro Ohe, Hisashi Amaya, Hideki Takabe, Yohei Otome, Yusaku Tomio, Masanao Seo, Tomohiko Omura, Kunio Kondo
  • Patent number: 8852366
    Abstract: A steel pipe with excellent expandability, comprising, by mass %, C: 0.1 to 0.45%, Si: 0.3 to 3.5%, Mn: 0.5 to 5%, P: less than or equal to 0.03%, S: less than or equal to 0.01%, soluble Al: 0.01 to 0.8% (more than or equal to 0.1% in case Si content is less than 1.5%), N: less than or equal to 0.05%, O: less than or equal to 0.01%, and balance being Fe and impurities, having a mixed microstructure comprising ferrite and one or more selected from fine pearlite, bainite and martensite, and having a tensile strength of more than or equal to 600 MPa and a uniform elongation satisfying following formula (1). This steel pipe, having the above described chemical composition, can be obtained, for example, by being heated at temperatures from 700 to 790° C., then being forced-cooled down to a temperature of lower than or equal to 100° C. with the cooling rate of greater than or equal to 100° C./min at the temperature from 700 to 500° C. u-el?28?0.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: October 7, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Kunio Kondo, Yuji Arai
  • Patent number: 8845830
    Abstract: A steel pipe with a wall thickness over 30 mm is subjected to heat treatment of quenching and tempering using a temperature range of at least not less than 750° C. during the heating stage, makes it possible to obtain a heavy-wall seamless steel pipe having excellent toughness by resulting grain refinement. Quenching is by performing water cooling after heating the steel pipe to a temperature in the range of not less than 900° C. to not more than 1000° C. by using, as a heating means, induction heating at a frequency of not more than 200 Hz. Tempering is performed at a temperature in the range of not less than 500° C. to not more than 750° C. Preferably, after the heating by induction heating, a soaking treatment is performed in the temperature range of not less than 900° C. to not more than 1000° C. for 10 minutes or less followed by water cooling.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: September 30, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Kunio Kondo, Yuji Arai
  • Patent number: 8735875
    Abstract: Provided is a light-emitting element having light emitting sections (17) that are distributed on a transparent substrate (11). Specifically, an electroluminescence element (10) includes the substrate having a bored part (16b) which is formed by recessing, below the light emitting sections, the surface of the substrate on a light emitting section side. By this configuration, the light-emitting element has a high light-emitting efficiency and exhibits required light distribution characteristics by controlling a direction of emitted light.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: May 27, 2014
    Assignee: Showa Denko K.K.
    Inventors: Masaru Tajima, Kanjiro Sako, Katsumasa Hirose, Kunio Kondo
  • Publication number: 20140131690
    Abstract: An organic light emitting element (10) includes: an anode layer (12) formed on a substrate (11); a first dielectric layer (13) formed on the anode layer (12); a cathode layer (14) formed on the first dielectric layer (13); plural through-hole portions (16) passing through at least the anode layer (12) and the first dielectric layer (13); a second dielectric layer (19) formed in contact with an upper surface of the substrate (11) and a side surface of the anode layer (12); and a light emitting portion (17) formed in contact with the cathode layer (14), the side surface of the anode layer (12) and the upper surface of the second dielectric layer (19). Consequently, the organic light emitting element or the like having high light extraction efficiency and high light emission efficiency is provided.
    Type: Application
    Filed: June 24, 2011
    Publication date: May 15, 2014
    Applicant: SHOWA DENKO K.K.
    Inventors: Kunio Kondo, Kanjiro Sako, Masaru Tajima, Katsumasa Hirose
  • Patent number: 8696834
    Abstract: A method for suppressing shock and storage cracking when manufacturing seamless steel pipes comprises hot piercing and hot rolling a billet consisting of, by mass percent controlled amounts of C, Si, Mn, Cr, Mo, Ti, and Al, with the balance being Fe and impurities of Ni, P, S, N, and O also in controlled amounts. Further heat treatment is performed, wherein a hot rolled steel pipe is direct quenched from a temperature of not lower than the Ar3 transformation point and the pipe is then subjected to heat treatment at a temperature of not lower than 450° C. and not higher than the Ac1 transformation point in heat treatment equipment for performing direct quenching. The steel pipe subjected to the heat treatment is reheated, quenched from a temperature of not lower than the Ac3 transformation point, and tempered at a temperature of not higher than the Ac1 transformation point.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: April 15, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Keiichi Kondo, Toshiharu Abe, Kunio Kondo, Yuichi Yano, Yuji Arai
  • Patent number: 8608872
    Abstract: The problem to be solved is the provision of a high-strength stainless steel pipe having a sufficient corrosion resistance in a high-temperature carbonic acid gas environment and having an excellent sulfide stress cracking resistance at normal temperature. A high-strength stainless steel pipe consist of, by mass %, C: 0.05% or less, Si: 1.0% or less, P: 0.05% or less, S: less than 0.002%, Cr: more than 16% and 18% or less, Mo: more than 2% and 3% or less, Cu: 1% to 3.5%, Ni: 3% or more and less than 5%, Al: 0.001% to 0.1% and O: 0.01% or less, Mn: 1% or less and N: 0.05% or less, and Mn and N in the above ranges satisfy formula (1), and the balance being Fe and impurities; and the metal micro-structure of the stainless steel pipe mainly includes a martensitic phase and comprises 10 to 40% of a ferritic phase by volume fraction and 10% or less of a retained ?-phase by volume fraction. [Mn]×([N]?0.0045)?0.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: December 17, 2013
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Kunio Kondo, Hisashi Amaya, Hideki Takabe, Taro Ohe
  • Publication number: 20130161679
    Abstract: An electroluminescent element (10) is provided with: an anode layer (12), a cathode layer (14) arranged to face the anode layer (12), pillars (13) formed in the space between the anode layer (12) and the cathode layer (14), and a light emitting layer (17) formed at a location other than the locations where the pillars (13) are formed; and the pillars (13) are formed so that the following conditions (1) and (2) are at least 95% satisfied. With this configuration, an electroluminescent element is provided that is unlikely to suffer from emission unevenness or short circuit and has high durability. (1) At least a part of the pillars (13) is included within a 10-?m diameter circular region the center of which is an arbitrary position on the surface of the anode layer (12). (2) At least a part of the light emitting layer (17) is included within a 20-?m diameter circular region the center of which is an arbitrary position on the surface of the anode layer (12).
    Type: Application
    Filed: September 2, 2010
    Publication date: June 27, 2013
    Applicant: SHOWA DENKO K.K.
    Inventors: Kunio Kondo, Kanjiro Sako, Masaru Tajima, Katsumasa Hirose