Patents by Inventor Ryutaro OKADA
Ryutaro OKADA 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: 20240009736Abstract: A shaped article production method includes: fabricating an intermediate article by powder bed fusion using a powder of a gamma prime precipitation strengthening Ni-based alloy; and heat-treating the intermediate article. The Ni-based alloy contains, in percent by mass, 7.0 to 17.0% Cr, 7.0 to 12.0% Co, 5.0 to 8.0% Al+Ti, 2.0 to 12.0% W, 1.5 to 4.4% Nb+Ta, 2.3% or less Mo, 0.3% or less C, 2.0% or less Hf, and 0.2% or less Zr. The fabricating the intermediate article includes applying a laser beam to a layer (3) of the powder along scan lines (4) parallel to one another. In applying the laser beam, a value obtained by dividing a pitch between the scan lines (4) by a laser spot diameter is in the range of 0.6 to 1.1.Type: ApplicationFiled: September 10, 2021Publication date: January 11, 2024Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Ryutaro OKADA, Shinya HIBINO, Kazushige FUJIMITSU
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Patent number: 11773470Abstract: A method for producing a high temperature component includes a shaping step of shaping a powder compact of a desired high temperature component shape using a specific powder shaping method, from an alloy powder of ?? precipitation strengthening-type Ni-based alloy, and a crystal grain coarsening step of coarsening a crystal grain size of the powder compact by heat treatment, wherein the powder compact contains 0.002% or more and 0.07% or less of C, and 5.40% or more and 8.40% or less of Al+Ti by mass percentage.Type: GrantFiled: May 9, 2022Date of Patent: October 3, 2023Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Shinya Hibino, Kazushige Fujimitsu, Yoshimichi Nomura, Ryutaro Okada
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Publication number: 20220267880Abstract: A method for producing a high temperature component includes a shaping step of shaping a powder compact of a desired high temperature component shape using a specific powder shaping method, from an alloy powder of ?? precipitation strengthening-type Ni-based alloy, and a crystal grain coarsening step of coarsening a crystal grain size of the powder compact by heat treatment, wherein the powder compact contains 0.002% or more and 0.07% or less of C, and 5.40% or more and 8.40% or less of Al+Ti by mass percentage.Type: ApplicationFiled: May 9, 2022Publication date: August 25, 2022Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Shinya HIBINO, Kazushige FUJIMITSU, Yoshimichi NOMURA, Ryutaro OKADA
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Publication number: 20220145430Abstract: A shaped article production method includes: fabricating an intermediate article by powder bed fusion using a powder of a gamma prime precipitation strengthening-type Ni-based alloy; and heat-treating the intermediate article. The Ni-based alloy contains, in percent by mass, 10 to 16% Cr, 4.5 to 7.5% Al, 2.8 to 6.2% Mo, 0.8 to 4% Nb+Ta, 0.01 to 2% Ti, 0.01 to 0.3% Zr, and 0.01 to 0.3% C. The fabricating the intermediate article includes applying a laser beam to a layer of the powder along scan lines parallel to one another, and in applying the laser beam, a value obtained by dividing a pitch between the scan lines by a laser spot diameter is in the range of 0.6 to 1.0.Type: ApplicationFiled: March 9, 2020Publication date: May 12, 2022Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Ryutaro OKADA, Yoshimichi NOMURA, Kenichiro IGASHIRA
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Publication number: 20220145429Abstract: A method of producing a shaped article by powder bed fusion using a powder of a gamma prime precipitation strengthening-type Ni-based alloy. The Ni-based alloy contains, in percent by mass, 10 to 16% Cr, 4.5 to 7.5% Al, 2.8 to 6.2% Mo, 0.8 to 4% Nb+Ta, 0.01 to 2% Ti, 0.01 to 0.3% Zr, and 0.01 to 0.3% C. In applying a laser beam to a layer of the powder along scan lines parallel to one another, a value obtained by dividing a pitch between the scan lines by a laser spot diameter is in the range of 0.2 to 1.0.Type: ApplicationFiled: March 9, 2020Publication date: May 12, 2022Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Ryutaro OKADA, Yoshimichi NOMURA, Kenichiro IGASHIRA
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Patent number: 11326230Abstract: A method for producing a high temperature component includes a shaping step of shaping a powder compact of a desired high temperature component shape using a specific powder shaping method, from an alloy powder of ?? precipitation strengthening-type Ni-based alloy, and a crystal grain coarsening step of coarsening a crystal grain size of the powder compact by heat treatment, wherein the powder compact contains 0.002% or more and 0.07% or less of C, and 5.40% or more and 8.40% or less of Al+Ti by mass percentage.Type: GrantFiled: May 11, 2018Date of Patent: May 10, 2022Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Shinya Hibino, Kazushige Fujimitsu, Yoshimichi Nomura, Ryutaro Okada
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Patent number: 10712000Abstract: An ash discharge system has a conveyor device which transports clinker ash out of a region that is below a furnace bottom of a boiler furnace; and a separation device provided at a passage of the clinker ash from the furnace bottom to the conveyor device, the separation device including a separator which permits the clinker ash with a predetermined size or less to pass through the separator, and inhibits a large-mass clinker from passing through the separator, the large-mass clinker being the clinker ash with a size larger than the predetermined size.Type: GrantFiled: December 2, 2016Date of Patent: July 14, 2020Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Yasutaka Ozeki, Yoshihiko Takemura, Tomoyuki Suzuki, Kei Takakura, Hiroshi Ito, Keiichi Mashio, Hiroshi Aoyagi, Takeshi Kawana, Akira Yamashita, Ryutaro Okada, Keita Tsunemori
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Publication number: 20200087754Abstract: A method for producing a high temperature component includes a shaping step of shaping a powder compact of a desired high temperature component shape using a specific powder shaping method, from an alloy powder of ?? precipitation strengthening-type Ni-based alloy, and a crystal grain coarsening step of coarsening a crystal grain size of the powder compact by heat treatment, wherein the powder compact contains 0.002% or more and 0.07% or less of C, and 5.40% or more and 8.40% or less of Al+Ti by mass percentage.Type: ApplicationFiled: May 11, 2018Publication date: March 19, 2020Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Shinya HIBINO, Kazushige FUJIMITSU, Yoshimichi NOMURA, Ryutaro OKADA
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Patent number: 10562072Abstract: A grizzly apparatus includes a plurality of grizzly bars arranged at predetermined intervals in a second direction perpendicular to a first direction which is an extension direction of center axes of the grizzly bars. Each of the plurality of grizzly bars is rotatable in a direction opposite to a direction of rotation of its adjacent grizzly bar so that a slit through which a screening target object passes and a gap through which the screening target object does not pass alternately emerge, between adjacent grizzly bars. The guide includes an outer member forming its outer shape, and has at least one guide surface inclined with respect to the second direction in such a way that the guide surface descends as the guide surface advances in the second direction toward the slit to guide the screening target object having fallen onto the guide to the slit.Type: GrantFiled: December 2, 2016Date of Patent: February 18, 2020Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Yasutaka Ozeki, Yoshihiko Takemura, Tomoyuki Suzuki, Kei Takakura, Hiroshi Ito, Keiichi Mashio, Hiroshi Aoyagi, Takeshi Kawana, Akira Yamashita, Ryutaro Okada, Keita Tsunemori
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Publication number: 20190178492Abstract: An ash discharge system has a conveyor device which transports clinker ash out of a region that is below a furnace bottom of a boiler furnace; and a separation device provided at a passage of the clinker ash from the furnace bottom to the conveyor device, the separation device including a separator which permits the clinker ash with a predetermined size or less to pass through the separator, and inhibits a large-mass clinker from passing through the separator, the large-mass clinker being the clinker ash with a size larger than the predetermined size.Type: ApplicationFiled: December 2, 2016Publication date: June 13, 2019Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Yasutaka OZEKI, Yoshihiko TAKEMURA, Tomoyuki SUZUKI, Kei TAKAKURA, Hiroshi ITO, Keiichi MASHIO, Hiroshi AOYAGI, Takeshi KAWANA, Akira YAMASHITA, Ryutaro OKADA, Keita TSUNEMORI
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Publication number: 20190009303Abstract: A grizzly apparatus includes a plurality of grizzly bars arranged at predetermined intervals in a second direction perpendicular to a first direction which is an extension direction of center axes of the grizzly bars. Each of the plurality of grizzly bars is rotatable in a direction opposite to a direction of rotation of its adjacent grizzly bar so that a slit through which a screening target object passes and a gap through which the screening target object does not pass alternately emerge, between adjacent grizzly bars. The guide includes an outer member forming its outer shape, and has at least one guide surface inclined with respect to the second direction in such a way that the guide surface descends as the guide surface advances in the second direction toward the slit to guide the screening target object having fallen onto the guide to the slit.Type: ApplicationFiled: December 2, 2016Publication date: January 10, 2019Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Yasutaka OZEKI, Yoshihiko TAKEMURA, Tomoyuki SUZUKI, Kei TAKAKURA, Hiroshi ITO, Keiichi MASHIO, Hiroshi AOYAGI, Takeshi KAWANA, Akira YAMASHITA, Ryutaro OKADA, Keita TSUNEMORI