Patents by Inventor Hirotaka Hirano
Hirotaka Hirano 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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Patent number: 12000020Abstract: Any metal having a low ?-ray emission, the metal being any one of tin, silver, copper, zinc, or indium, wherein an emission of an ?-ray after heating the metal at 100° C. in an atmosphere for six hours is 0.002 cph/cm2 or less. Any metal of tin, silver, copper, zinc and indium each including lead as an impurity is dissolved to prepare a hydrosulfate aqueous solution of the metal and lead sulfate is precipitated and removed in the solution. The lead sulfate is precipitated in the hydrosulfate aqueous solution by adding a lead nitrate aqueous solution including lead having an ?-ray emission of 10 cph/cm2 or less to the hydrosulfate aqueous solution, from which the lead sulfate has been removed, and, at the same time, the solution is circulated while removing the lead sulfate to electrowinning the metal using the hydrosulfate aqueous solution as an electrolytic solution.Type: GrantFiled: November 21, 2022Date of Patent: June 4, 2024Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Hirotaka Hirano, Yoshihiro Yoshida, Takuma Katase
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Publication number: 20230276836Abstract: An object of the present invention is to provide an oral retention composition in which a decrease in the viscosity of an acidic polysaccharide due to a functional substance is suppressed even when the functional substance is basic. The present invention relates to an oral retention composition comprising at least one compound selected from the group consisting of shellac and zein, a functional substance, and an acidic polysaccharide, the functional substance coated with the at least one compound selected from the group consisting of shellac and zein being mixed with the acidic polysaccharide.Type: ApplicationFiled: July 20, 2021Publication date: September 7, 2023Inventors: Junichiro WAKAMATSU, Michiko MATSUMOTO, Hirotaka HIRANO, Hitomi WATANABE, Koki HAKATA, Keisuke URYU, Isafumi MARU
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Patent number: 11692277Abstract: The present invention provides a high-concentration tin sulfonate aqueous solution, in which a divalent tin ion (Sn2+) concentration is 360 g/L to 420 g/L, a tetravalent tin ion (Sn4+) concentration is 10 g/L or less, a free methanesulfonic acid concentration is 40 g/L or less, a Hazen unit color number (APHA) is 240 or less, and a turbidity is 25 FTU or less. This aqueous solution is produced such that stannous oxide powder whose temperature is adjusted to a temperature of 10° C. or lower is added to an aqueous methanesulfonic acid solution having a concentration of 60% by mass to 90% by mass when the aqueous solution circulates in a state of being maintained at the temperature of 10° C. or lower, and the stannous oxide powder is dissolved.Type: GrantFiled: June 29, 2022Date of Patent: July 4, 2023Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Koji Tatsumi, Kyohei Mineo, Hirotaka Hirano
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Publication number: 20230085708Abstract: Any metal having a low ?-ray emission, the metal being any one of tin, silver, copper, zinc, or indium, wherein an emission of an ?-ray after heating the metal at 100° C. in an atmosphere for six hours is 0.002 cph/cm2 or less. Any metal of tin, silver, copper, zinc and indium each including lead as an impurity is dissolved to prepare a hydrosulfate aqueous solution of the metal and lead sulfate is precipitated and removed in the solution. The lead sulfate is precipitated in the hydrosulfate aqueous solution by adding a lead nitrate aqueous solution including lead having an ?-ray emission of 10 cph/cm2 or less to the hydrosulfate aqueous solution, from which the lead sulfate has been removed, and, at the same time, the solution is circulated while removing the lead sulfate to electrowinning the metal using the hydrosulfate aqueous solution as an electrolytic solution.Type: ApplicationFiled: November 21, 2022Publication date: March 23, 2023Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Hirotaka Hirano, Yoshihiro Yoshida, Takuma Katase
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Patent number: 11525187Abstract: The present invention provides a high-concentration tin sulfonate aqueous solution, in which a divalent tin ion (Sn2+) concentration is 360 g/L to 420 g/L, a tetravalent tin ion (Sn4+) concentration is 10 g/L or less, a free methanesulfonic acid concentration is 40 g/L or less, a Hazen unit color number (APHA) is 240 or less, and a turbidity is 25 FTU or less. This aqueous solution is produced such that stannous oxide powder whose temperature is adjusted to a temperature of 10° C. or lower is added to an aqueous methanesulfonic acid solution having a concentration of 60% by mass to 90% by mass when the aqueous solution circulates in a state of being maintained at the temperature of 10° C. or lower, and the stannous oxide powder is dissolved.Type: GrantFiled: February 21, 2020Date of Patent: December 13, 2022Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Koji Tatsumi, Kyohei Mineo, Hirotaka Hirano
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Publication number: 20220333264Abstract: The present invention provides a high-concentration tin sulfonate aqueous solution, in which a divalent tin ion (Sn2+) concentration is 360 g/L to 420 g/L, a tetravalent tin ion (Sn4+) concentration is 10 g/L or less, a free methanesulfonic acid concentration is 40 g/L or less, a Hazen unit color number (APHA) is 240 or less, and a turbidity is 25 FTU or less. This aqueous solution is produced such that stannous oxide powder whose temperature is adjusted to a temperature of 10° C. or lower is added to an aqueous methanesulfonic acid solution having a concentration of 60% by mass to 90% by mass when the aqueous solution circulates in a state of being maintained at the temperature of 10° C. or lower, and the stannous oxide powder is dissolved.Type: ApplicationFiled: June 29, 2022Publication date: October 20, 2022Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Koji Tatsumi, Kyohei Mineo, Hirotaka Hirano
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Publication number: 20220042196Abstract: The present invention provides a high-concentration tin sulfonate aqueous solution, in which a divalent tin ion (Sn2+) concentration is 360 g/L to 420 g/L, a tetravalent tin ion (Sn4+) concentration is 10 g/L or less, a free methanesulfonic acid concentration is 40 g/L or less, a Hazen unit color number (APHA) is 240 or less, and a turbidity is 25 FTU or less. This aqueous solution is produced such that stannous oxide powder whose temperature is adjusted to a temperature of 10° C. or lower is added to an aqueous methanesulfonic acid solution having a concentration of 60% by mass to 90% by mass when the aqueous solution circulates in a state of being maintained at the temperature of 10° C. or lower, and the stannous oxide powder is dissolved.Type: ApplicationFiled: February 21, 2020Publication date: February 10, 2022Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Koji Tatsumi, Kyohei Mineo, Hirotaka Hirano
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Publication number: 20210221700Abstract: What is provided is stannous oxide having an ?-ray emission amount of 0.002 cph/cm2 or less after heating in an atmosphere at 100° C. for 6 hours. Tin containing lead as an impurity is dissolved in a sulfuric acid aqueous solution to prepare a tin sulfate aqueous solution, and lead sulfate is precipitated in the aqueous solution and removed. While stirring the tin sulfate aqueous solution from which lead sulfate has been removed, a lead nitrate aqueous solution containing lead having an ?-ray emission amount of 10 cph/cm2 or less is added to cause lead sulfate to be precipitated in the tin sulfate aqueous solution, and simultaneously the tin sulfate aqueous solution is circulated while removing the lead sulfate from the aqueous solution. A neutralizing agent is added to the tin sulfate aqueous solution to collect stannous oxide.Type: ApplicationFiled: July 11, 2019Publication date: July 22, 2021Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Hirotaka Hirano, Yoshihiro Yoshida, Takuma Katase
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Patent number: 10992852Abstract: [Object] To provide a medical observation device and a control method. [Solution] Provided is a medical observation device including: an imaging optical system including an objective optical system that condenses light from a subject and two image-forming optical systems which have optical axes different from an optical axis of the objective optical system and which cause light condensed by the objective optical system to form an image; and a control unit configured to cause an autofocus operation to be executed by causing a focusing optical member included in the objective optical system to move.Type: GrantFiled: October 6, 2017Date of Patent: April 27, 2021Assignees: SONY CORPORATION, SONY OLYMPUS MEDICAL SOLUTIONS INC.Inventors: Hirotaka Hirano, Tatsuya Ibuka, Takahiro Yamamoto
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Patent number: 10912450Abstract: There is provided a control device including: an autofocus control section configured to execute an autofocus operation by moving at least one optical member; and an autofocus operation determination section configured to determine whether it is possible for the autofocus operation to bring biological tissue into focus, the biological tissue serving as an object. In a case where the autofocus operation determination section determines that it is not possible for the autofocus operation to bring the object into focus, the autofocus control section moves the at least one optical member to a predicted focal position set in advance in accordance with a purpose of imaging to make it possible to further improve convenience of a user.Type: GrantFiled: March 26, 2019Date of Patent: February 9, 2021Assignees: SONY CORPORATION, SONY OLYMPUS MEDICAL SOLUTIONS INC.Inventors: Sakae Okazaki, Hirotaka Hirano, Takahiro Yamamoto
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Publication number: 20200385843Abstract: Any metal having a low ?-ray emission, the metal being any one of tin, silver, copper, zinc, or indium, wherein an emission of an ?-ray after heating the metal at 100° C. in an atmosphere for six hours is 0.002 cph/cm2 or less. Any metal of tin, silver, copper, zinc and indium each including lead as an impurity is dissolved to prepare a hydrosulfate aqueous solution of the metal and lead sulfate is precipitated and removed in the solution. The lead sulfate is precipitated in the hydrosulfate aqueous solution by adding a lead nitrate aqueous solution including lead having an a-ray emission of 10 cph/cm2 or less to the hydrosulfate aqueous solution, from which the lead sulfate has been removed, and, at the same time, the solution is circulated while removing the lead sulfate to electrowinning the metal using the hydrosulfate aqueous solution as an electrolytic solution.Type: ApplicationFiled: August 13, 2018Publication date: December 10, 2020Inventors: Hirotaka Hirano, Yoshihiro Yoshida, Takuma Katase
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Patent number: 10568492Abstract: [Object] To control the focal position of an optical system with a more favorable aspect, in accordance with the band targeted for observation. [Solution] A medical observation device includes: a computation section that applies, to an imaging signal corresponding to each of a plurality of different spectral components based on a light receiving result regarding observation target light from a subject in vivo from an image sensor, weights of the plurality of spectral components corresponding to a band targeted for observation from among bands in the observation target light, and computes an evaluation value indicating a degree of being in-focus on a basis of the imaging signal to which the weights are applied; and a control section that controls, on a basis of the evaluation value, a position of at least one optical member in an optical system that forms an image of the observation target light from the subject onto the image sensor, and thereby controls a focal position of the optical system.Type: GrantFiled: May 12, 2016Date of Patent: February 25, 2020Assignees: SONY CORPORATION, SONY OLYMPUS MEDICAL SOLUTIONS INC.Inventors: Sakae Okazaki, Toshio Katayama, Hirotaka Hirano, Takahiro Yamamoto
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Publication number: 20190281227Abstract: [Object] To provide a medical observation device and a control method. [Solution] Provided is a medical observation device including: an imaging optical system including an objective optical system that condenses light from a subject and two image-forming optical systems which have optical axes different from an optical axis of the objective optical system and which cause light condensed by the objective optical system to form an image; and a control unit configured to cause an autofocus operation to be executed by causing a focusing optical member included in the objective optical system to move.Type: ApplicationFiled: October 6, 2017Publication date: September 12, 2019Applicants: Sony Corporation, Sony Olympus Medical Solutions Inc.Inventors: Hirotaka Hirano, Tatsuya Ibuka, Takahiro Yamamoto
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Patent number: 10392262Abstract: A stannous oxide powder which has a high dissolution rate into various acid solutions such as a plating solution and is particularly suitable as a Sn supply material to a plating solution, and a method for producing the stannous oxide powder are provided. The stannous oxide powder is a particle body having a plurality of plate-like protrusions protruding outward, and has an average particle size in a range of 1 ?m to 15 ?m.Type: GrantFiled: February 12, 2016Date of Patent: August 27, 2019Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Hirotaka Hirano, Takuma Katase
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Publication number: 20190216301Abstract: There is provided a control device including: an autofocus control section configured to execute an autofocus operation by moving at least one optical member; and an autofocus operation determination section configured to determine whether it is possible for the autofocus operation to bring biological tissue into focus, the biological tissue serving as an object. In a case where the autofocus operation determination section determines that it is not possible for the autofocus operation to bring the object into focus, the autofocus control section moves the at least one optical member to a predicted focal position set in advance in accordance with a purpose of imaging to make it possible to further improve convenience of a user.Type: ApplicationFiled: March 26, 2019Publication date: July 18, 2019Applicants: SONY CORPORATION, SONY OLYMPUS MEDICAL SOLUTIONS INC.Inventors: Sakae OKAZAKI, Hirotaka HIRANO, Takahiro YAMAMOTO
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Patent number: 10351438Abstract: A stannous oxide powder which has a high dissolution rate into various acid solutions such as a plating solution and is particularly suitable as a Sn supply material to a plating solution, and a method for producing the stannous oxide powder are provided. The stannous oxide powder is a particle body having a plurality of plate-like protrusions protruding outward, and has an average particle size in a range of 1 ?m to 15 ?m.Type: GrantFiled: February 12, 2016Date of Patent: July 16, 2019Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Hirotaka Hirano, Takuma Katase
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Patent number: 10278566Abstract: [Object] To make it possible to further improve convenience of a user. [Solution] There is provided a control device including: an autofocus control section configured to execute an autofocus operation by moving at least one optical member; and an autofocus operation determination section configured to determine whether it is possible for the autofocus operation to bring biological tissue into focus, the biological tissue serving as an object. In a case where the autofocus operation determination section determines that it is not possible for the autofocus operation to bring the object into focus, the autofocus control section moves the at least one optical member to a predicted focal position set in advance in accordance with a purpose of imaging.Type: GrantFiled: May 10, 2016Date of Patent: May 7, 2019Assignees: SONY CORPORATION, SONY OLYMPUS MEDICAL SOLUTIONS INC.Inventors: Sakae Okazaki, Hirotaka Hirano, Takahiro Yamamoto
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Publication number: 20190120421Abstract: An object of the present invention is to provide a reserve tank mounting structure capable of absorbing displacement of a reserve tank to disperse a load caused by vibration of a vehicle. A bracket includes front and rear fastening points for fixing a reserve tank by bolt members from a vertical direction, corresponding to front and rear mounting arms projecting in a vehicle width direction from positions spaced apart from each other in a vehicle longitudinal direction with a cap opening therebetween. In a state where the reserve tank is fixed to a vehicle body, the cap opening is disposed between the fastening points.Type: ApplicationFiled: September 9, 2016Publication date: April 25, 2019Inventors: Takaaki OHNISHI, Hikaru YADORI, Hirotaka HIRANO, Sekihei SHIMOZONO
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Patent number: 10184046Abstract: The method of producing stannous oxide includes: a Sn ion-containing acid solution forming step (S01); a first neutralizing step (S02), which is a step of forming Sn precipitates by adding one or more of alkaline solutions of ammonium carbonate, ammonium bicarbonate, and aqueous ammonia to the Sn ion-containing acid solution to retain pH at 3-6 therein; a Sn precipitate separating step (S03); a Sn precipitate dispersing step (S04), which is a step of dispersing the separated Sn precipitates in a solvent liquid to obtain a dispersion liquid; and a second neutralizing step (S06), which is a step of forming SnO by adding an alkaline solution to the dispersion liquid of the Sn precipitates and then by heating, wherein Na, K, Pb, Fe, Ni, Cu, Zn, Al, Mg, Ca, Cr, Mn, Co, In, and Cd reside in the Sn ion-containing acid solution in the first neutralizing step (S02).Type: GrantFiled: March 2, 2015Date of Patent: January 22, 2019Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Takuma Katase, Hirotaka Hirano
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Publication number: 20180327274Abstract: A stannous oxide powder which has a high dissolution rate into various acid solutions such as a plating solution and is particularly suitable as a Sn supply material to a plating solution, and a method for producing the stannous oxide powder are provided. The stannous oxide powder is a particle body having a plurality of plate-like protrusions protruding outward, and has an average particle size in a range of 1 ?m to 15 ?m.Type: ApplicationFiled: February 12, 2016Publication date: November 15, 2018Inventors: Hirotaka Hirano, Takuma Katase