Patents by Inventor Hideharu Tajima
Hideharu Tajima 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: 20230260545Abstract: An optical disk (100) of the present invention includes (i) a medium information region (101) (a) in which type identification information is recorded by recesses and/or protrusions which are formed by a given modulation method and whose lengths are longer than a length of an optical system resolution limit of a playback device and (b) in which first address information is recorded in a first address data format and (ii) a data region (102) (a) in which content data is recorded by recesses and/or protrusions which are formed by the given modulation method and which include a recess and/or a protrusion whose length is shorter than the length of the optical system resolution limit and (b) in which second address information is recorded in a second address data format.Type: ApplicationFiled: April 21, 2023Publication date: August 17, 2023Inventors: Hirohisa YAMADA, Takayuki NAKA, Masaki YAMAMOTO, Yoshihisa ADACHI, Hideharu TAJIMA, Masahito KONISHI
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Patent number: 11676634Abstract: An optical disk (100) of the present invention includes (i) a medium information region (101) (a) in which type identification information is recorded by recesses and/or protrusions which are formed by a given modulation method and whose lengths are longer than a length of an optical system resolution limit of a playback device and (b) in which first address information is recorded in a first address data format and (ii) a data region (102) (a) in which content data is recorded by recesses and/or protrusions which are formed by the given modulation method and which include a recess and/or a protrusion whose length is shorter than the length of the optical system resolution limit and (b) in which second address information is recorded in a second address data format.Type: GrantFiled: January 2, 2020Date of Patent: June 13, 2023Assignees: SHARP KABUSHIKI KAISHA, MEMORY-TECH HOLDINGS INC.Inventors: Hirohisa Yamada, Takayuki Naka, Masaki Yamamoto, Yoshihisa Adachi, Hideharu Tajima, Masahito Konishi
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Publication number: 20220260327Abstract: A highly efficient heat exchanger member is realized by providing, to a metal surface, a characteristic that is not found in the metal itself with a coating film excelling in thermal conductivity. A heat exchanger member is made of metal, and includes a carbon-containing oxide film (112B) provided on the metal surface and having fine concave-convex portions (112C). An average spacing between apexes of convex portions of the fine concave-convex portions (112C) is greater than or equal to 40 nm and less than or equal to 120 nm, and an average value of differences in height between apexes of adjacent convex portions and bottom points of concave portions is greater than or equal to 30 nm and less than or equal to 250 nm.Type: ApplicationFiled: September 11, 2020Publication date: August 18, 2022Applicant: YAMAICHI SPECIAL STEEL CO., LTDInventors: Hideharu TAJIMA, Motoki TAKAGAWA
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Publication number: 20220228819Abstract: A heat exchanger member, a heat exchanger, a heat exchanger, and a cooling system that are highly efficient are realized by providing, to a surface of a metal in contact with a refrigerant, of a heat exchanger used for a cooling unit and a heat dissipation unit, characteristics not found in the metal itself with a coating film excelling in thermal conductivity and excelling in wettability with the refrigerant. A heat exchanger member made of metal having a surface that comes into contact with a refrigerant when a heat exchanger is operated includes a metal oxide film provided on the surface, having protrusions, and containing crystalline carbon.Type: ApplicationFiled: March 2, 2021Publication date: July 21, 2022Applicant: YAMAICHI SPECIAL STEEL CO., LTD.Inventors: Hideharu TAJIMA, Motoki TAKAGAWA, Tomoko SUZUKI
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Publication number: 20200143829Abstract: An optical disk (100) of the present invention includes (i) a medium information region (101) (a) in which type identification information is recorded by recesses and/or protrusions which are formed by a given modulation method and whose lengths are longer than a length of an optical system resolution limit of a playback device and (b) in which first address information is recorded in a first address data format and (ii) a data region (102) (a) in which content data is recorded by recesses and/or protrusions which are formed by the given modulation method and which include a recess and/or a protrusion whose length is shorter than the length of the optical system resolution limit and (b) in which second address information is recorded in a second address data format.Type: ApplicationFiled: January 2, 2020Publication date: May 7, 2020Inventors: Hirohisa YAMADA, Takayuki NAKA, Masaki YAMAMOTO, Yoshihisa ADACHI, Hideharu TAJIMA, Masahito KONISHI
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Patent number: 10636445Abstract: An optical disk (100) of the present invention includes (i) a medium information region (101) (a) in which type identification information is recorded by recesses and/or protrusions which are formed by a given modulation method and whose lengths are longer than a length of an optical system resolution limit of a playback device and (b) in which first address information is recorded in a first address data format and (ii) a data region (102) (a) in which content data is recorded by recesses and/or protrusions which are formed by the given modulation method and which include a recess and/or a protrusion whose length is shorter than the length of the optical system resolution limit and (b) in which second address information is recorded in a second address data format.Type: GrantFiled: July 9, 2018Date of Patent: April 28, 2020Assignees: SHARP KABUSHIKI KAISHA, MEMORY-TECH HOLDINGS INC.Inventors: Hirohisa Yamada, Takayuki Naka, Masaki Yamamoto, Yoshihisa Adachi, Hideharu Tajima, Masahito Konishi
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Patent number: 10381039Abstract: A reproducing device (100) includes (i) an optical pickup (6) for irradiating, with reproduction light, an optical disk (1) which is a super-resolution medium, (ii) an RF signal processing circuit (9) for converting, into a reproduction signal, light which reflected off optical disk (1), (iii) an i-MLSE detecting section (141) for evaluating quality of the reproduction signal, and (iv) a spherical aberration correcting section (142) for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal.Type: GrantFiled: December 14, 2018Date of Patent: August 13, 2019Assignees: SHARP KABUSHIKI KAISHA, MEMORY-TECH HOLDINGS INC.Inventors: Hideharu Tajima, Masaki Yamamoto, Hirohisa Yamada, Takayuki Naka, Masahito Konishi
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Publication number: 20190130941Abstract: A reproducing device (100) includes (i) an optical pickup (6) for irradiating, with reproduction light, an optical disk (1) which is a super-resolution medium, (ii) an RF signal processing circuit (9) for converting, into a reproduction signal, light which reflected off optical disk (1), (iii) an i-MLSE detecting section (141) for evaluating quality of the reproduction signal, and (iv) a spherical aberration correcting section (142) for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal.Type: ApplicationFiled: December 14, 2018Publication date: May 2, 2019Inventors: Hideharu TAJIMA, Masaki YAMAMOTO, Hirohisa YAMADA, Takayuki NAKA, Masahito KONISHI
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Patent number: 10232684Abstract: A carbon dioxide concentration control device (10) is provided with a control unit (15) that controls an absorption amount of carbon dioxide of a carbon dioxide absorbent (16) per unit hour, and a regeneration control unit (14) that generates the carbon dioxide absorbent (16), and a second drive energy supply unit (13) which is different from a first drive energy supply unit (11) that supplies power to the control unit (15) supplies power to the regeneration control unit (14), and thus a carbon dioxide concentration in a space is controlled to be an appropriate value for long periods of time.Type: GrantFiled: May 14, 2015Date of Patent: March 19, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Hideharu Tajima, Takayuki Naka, Hirohisa Yamada, Masaki Yamamoto
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Patent number: 10232304Abstract: Consumed energy and cost relating to control of a carbon dioxide concentration is reduced. Each of CO2 concentration control systems (100 to 105) includes a measuring unit (20) that measures a CO2 concentration, a CO2 absorption unit (30) that has a CO2 absorption material (31) for absorbing CO2 at a rate depending on the temperature thereof, and a control unit (10) that controls the temperature of the CO2 absorption material (31) by using exhaust heat of a power system (40), so as to control a CO2 absorption rate of the CO2 absorption material (31).Type: GrantFiled: July 21, 2015Date of Patent: March 19, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Masaki Yamamoto, Takayuki Naka, Hirohisa Yamada, Hideharu Tajima
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Patent number: 10192581Abstract: A reproducing device (100) includes (i) an optical pickup (6) for irradiating, with reproduction light, an optical disk (1) which is a super-resolution medium, (ii) an RF signal processing circuit (9) for converting, into a reproduction signal, light which reflected off optical disk (1), (iii) an i-MLSE detecting section (141) for evaluating quality of the reproduction signal, and (iv) a spherical aberration correcting section (142) for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal.Type: GrantFiled: April 19, 2018Date of Patent: January 29, 2019Assignees: SHARP KABUSHIKI KAISHA, MEMORY-TECH HOLDINGS INC.Inventors: Hideharu Tajima, Masaki Yamamoto, Hirohisa Yamada, Takayuki Naka, Masahito Konishi
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Publication number: 20180315447Abstract: An optical disk (100) of the present invention includes (i) a medium information region (101) (a) in which type identification information is recorded by recesses and/or protrusions which are formed by a given modulation method and whose lengths are longer than a length of an optical system resolution limit of a playback device and (b) in which first address information is recorded in a first address data format and (ii) a data region (102) (a) in which content data is recorded by recesses and/or protrusions which are formed by the given modulation method and which include a recess and/or a protrusion whose length is shorter than the length of the optical system resolution limit and (b) in which second address information is recorded in a second address data format.Type: ApplicationFiled: July 9, 2018Publication date: November 1, 2018Inventors: Hirohisa YAMADA, Takayuki NAKA, Masaki YAMAMOTO, Yoshihisa ADACHI, Hideharu TAJIMA, Masahito KONISHI
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Patent number: 10068605Abstract: In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P1max) or a longest space (S1max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P2max) or a longest space (S2max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.Type: GrantFiled: April 4, 2018Date of Patent: September 4, 2018Assignees: Sharp Kabushiki Kaisha, Memory-Tech Holdings Inc.Inventors: Takayuki Naka, Hirohisa Yamada, Masaki Yamamoto, Hideharu Tajima, Masahito Konishi
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Publication number: 20180240498Abstract: A reproducing device (100) includes (i) an optical pickup (6) for irradiating, with reproduction light, an optical disk (1) which is a super-resolution medium, (ii) an RF signal processing circuit (9) for converting, into a reproduction signal, light which reflected off optical disk (1), (iii) an i-MLSE detecting section (141) for evaluating quality of the reproduction signal, and (iv) a spherical aberration correcting section (142) for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal.Type: ApplicationFiled: April 19, 2018Publication date: August 23, 2018Inventors: Hideharu TAJIMA, Masaki YAMAMOTO, Hirohisa YAMADA, Takayuki NAKA, Masahito KONISHI
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Publication number: 20180226097Abstract: In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P1max) or a longest space (S1max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P2max) or a longest space (S2max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.Type: ApplicationFiled: April 4, 2018Publication date: August 9, 2018Inventors: Takayuki NAKA, Hirohisa YAMADA, Masaki YAMAMOTO, Hideharu TAJIMA, Masahito KONISHI
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Publication number: 20180224145Abstract: At least one of temperature and humidity is appropriately adjusted and CO2 concentration in the air is adjusted to an appropriate value. An air-conditioning system (100) includes a CO2 concentration detection portion (13), a CO2 absorbing unit (40) that absorbs CO2 from the air which has been taken via flow paths a and b or a flow path c and thereafter discharges the air to the flow path via which the air has been taken, and a CO2 concentration control portion (25) that adjusts, in accordance with the CO2 concentration, an amount of the air to be taken.Type: ApplicationFiled: July 8, 2016Publication date: August 9, 2018Inventors: HIDEHARU TAJIMA, TAKAYUKI NAKA, HIROHISA YAMADA
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Patent number: 10043545Abstract: An optical disk (100) of the present invention includes (i) a medium information region (101) (a) in which type identification information is recorded by recesses and/or protrusions which are formed by a given modulation method and whose lengths are longer than a length of an optical system resolution limit of a playback device and (b) in which first address information is recorded in a first address data format and (ii) a data region (102) (a) in which content data is recorded by recesses and/or protrusions which are formed by the given modulation method and which include a recess and/or a protrusion whose length is shorter than the length of the optical system resolution limit and (b) in which second address information is recorded in a second address data format.Type: GrantFiled: May 31, 2017Date of Patent: August 7, 2018Assignees: SHARP KABUSHIKI KAISHA, MEMORY-TECH HOLDINGS INC.Inventors: Hirohisa Yamada, Takayuki Naka, Masaki Yamamoto, Yoshihisa Adachi, Hideharu Tajima, Masahito Konishi
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Patent number: 10005019Abstract: A carbon dioxide concentration-controlling device (1 or 100) of the present invention controls the carbon dioxide absorption rate of a carbon dioxide-absorbing material (30) in accordance with a carbon dioxide concentration detected by a detector (20). A state determining unit (11) determines a state of the carbon dioxide-absorbing material (30), and a state controlling unit (12) controls the state of the carbon dioxide-absorbing material (30) to the state determined by the state determining unit (11).Type: GrantFiled: November 11, 2014Date of Patent: June 26, 2018Assignee: SHARP KABUSHIKI KAISHAInventors: Masaki Yamamoto, Takayuki Naka, Hirohisa Yamada, Hideharu Tajima
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Publication number: 20180147527Abstract: Even in the case where a gas contains water, a decrease in absorption efficiency of carbon dioxide contained in the gas is suppressed. A carbon dioxide absorbent material (10) absorbs carbon dioxide contained in a gas and contains a tetravalent lithium silicate that exhibits water solubility.Type: ApplicationFiled: June 24, 2016Publication date: May 31, 2018Inventors: HIDEHARU TAJIMA, TAKAYUKI NAKA, HIROHISA YAMADA, KENTARO KISHIRA
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Patent number: 9978415Abstract: In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P1max) or a longest space (S1max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P2max) or a longest space (S2max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.Type: GrantFiled: August 16, 2017Date of Patent: May 22, 2018Assignees: SHARP KABUSHIKI KAISHA, MEMORY-TECH HOLDINGS INC.Inventors: Takayuki Naka, Hirohisa Yamada, Masaki Yamamoto, Hideharu Tajima, Masahito Konishi