Patents by Inventor Toshiyuki Okuma
Toshiyuki Okuma 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: 10662516Abstract: Provided is a hot-dip Al—Zn—Mg—Si coated steel sheet having good corrosion resistance in flat parts and edge parts, and also having excellent worked part corrosion resistance. The hot-dip Al—Zn—Mg—Si coated steel sheet includes a base steel sheet and a hot-dip coating on a surface of the base steel sheet. The hot-dip coating includes an interfacial alloy layer present at an interface with the base steel sheet and a main layer present on the interfacial alloy layer, and contains from 25 mass % to 80 mass % of Al, from greater than 0.6 mass % to 15 mass % of Si, and from greater than 0.1 mass % to 25 mass % of Mg. The Mg content and Si content in the hot-dip coating satisfy formula (1): MMg/(MSi?0.6)>1.7??(1) where MMg represents the Mg content (mass %) and MSi represents the Si content (mass %).Type: GrantFiled: March 2, 2016Date of Patent: May 26, 2020Assignee: JFE STEEL CORPORATIONInventors: Toshihiko Ooi, Yohei Sato, Yoichi Tobiyama, Toshiyuki Okuma, Akihiko Furuta, Masahiro Yoshida, Yoshitsugu Suzuki, Satoru Ando, Akira Matsuzaki
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Publication number: 20180051366Abstract: Provided is a hot-dip Al—Zn—Mg—Si coated steel sheet having good corrosion resistance in flat parts and edge parts, and also having excellent worked part corrosion resistance. The hot-dip Al—Zn—Mg—Si coated steel sheet includes a base steel sheet and a hot-dip coating on a surface of the base steel sheet. The hot-dip coating includes an interfacial alloy layer present at an interface with the base steel sheet and a main layer present on the interfacial alloy layer, and contains from 25 mass % to 80 mass % of Al, from greater than 0.6 mass % to 15 mass % of Si, and from greater than 0.1 mass % to 25 mass % of Mg. The Mg content and Si content in the hot-dip coating satisfy formula (1): MMg/(MSi?0.6)>1.7 ??(1) where MMg represents the Mg content (mass %) and MSi represents the Si content (mass %).Type: ApplicationFiled: March 2, 2016Publication date: February 22, 2018Applicant: JFE STEEL CORPORATIONInventors: Toshihiko OOI, Yohei SATO, Yoichi TOBIYAMA, Toshiyuki OKUMA, Akihiko FURUTA, Masahiro YOSHIDA, Yoshitsugu SUZUKI, Satoru ANDO, Akira MATSUZAKI
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Publication number: 20150337428Abstract: A hot-dip Al—Zn alloy coated steel sheet having good corrosion resistance in flat parts as well as good workability and thereby has excellent corrosion resistance in worked parts. The upper layer of the hot-dip coating has a composition containing Al in an amount of 20 mass % to 95 mass %, Si in an amount of 10% or less of the Al content, at least one of Ca and Mg, the total content of Ca and Mg being 0.01 mass % to 10 mass %, and the balance including Zn and incidental impurities, and the mean Vickers hardness of the hot-dip coating is 50 Hv to 100 Hv.Type: ApplicationFiled: January 24, 2014Publication date: November 26, 2015Applicant: JFE STEEL CORPORATIONInventors: Toshihiko OOI, Toshiyuki OKUMA, Akihiko FURUTA, Masahiro YOSHIDA, Akira MATSUZAKI, Satoru ANDO
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Patent number: 8984671Abstract: A head-mounted device to be worn on a user's head includes a first pressing member to press, for example, an occipital region, a second pressing member to press, for example, a parietal region, and first and second linear members connected to the first and second pressing members respectively. The first and second linear members are guided so that a change in lengths of the first and second linear members causes the first and second pressing members to move in the first and second directions respectively. An adjustment unit to adjust the lengths of the first and second linear members includes first and second wind-up units connected to a rotational operation member and to wind up the first and second linear members respectively.Type: GrantFiled: September 4, 2008Date of Patent: March 24, 2015Assignee: Canon Kabushiki KaishaInventors: Toshiyuki Yasuda, Takaaki Nakabayashi, Toshiki Ishino, Toshiyuki Okuma, Yoshihiro Saito, Kazuhide Miyata, Hiroshi Komatsu
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Patent number: 8959667Abstract: A head-mountable apparatus mountable on a head of an observer comprises a first pressing member which presses a first portion of the head; a second pressing member which presses a second portion of the head; and an adjustment unit adapted to move the first pressing member and the second pressing member to positions where the first pressing member and the second pressing member respectively press the first portion and the second portion.Type: GrantFiled: June 10, 2010Date of Patent: February 24, 2015Assignee: Canon Kabushiki KaishaInventors: Takaaki Nakabayashi, Toshiyuki Yasuda, Toshiki Ishino, Yoshihiro Saito, Toshiyuki Okuma, Kazuhide Miyata
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Patent number: 8928557Abstract: A head-mounted device for mounting on the head of a user includes a first pressing member for pressing a first portion of the head from a first direction; a second pressing member for pressing a second portion of the head from a second direction that is different from the first direction; a string member that concatenates the first pressing member and the second pressing member; a structure that guides the string member so that the first and the second pressing members move in the first and the second directions, respectively, according to changes in the length of the string member; and an adjusting unit that adjusts the length of the string member.Type: GrantFiled: July 20, 2012Date of Patent: January 6, 2015Assignee: Canon Kabushiki KaishaInventors: Takaaki Nakabayashi, Toshiyuki Yasuda, Toshiki Ishino, Yoshihiro Saito, Toshiyuki Okuma, Kazuhide Miyata, Hiroshi Komatsu
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Publication number: 20140198191Abstract: The invention provides a head mounted image-sensing display device including a pair of image-sensing units (18R, 18L) that stereoscopically capture a physical space and output a pair of stereoscopic images, and display units (13R, 13L) for displaying images for the right eye and images for the left eye. Image sensing parameters that are previously measured for the image-sensing units are stored in image sensing parameter storage units (26R, 26L). As a result, a difference in parallax between captured images of a physical space and images of a virtual object is reduced.Type: ApplicationFiled: March 18, 2014Publication date: July 17, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Toshiyuki Yasuda, Toshiyuki Okuma, Yoshihiro Saito, Toshiki Ishino, Takaaki Nakabayashi
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Patent number: 8717420Abstract: The invention provides a head mounted image-sensing display device including a pair of image-sensing units (18R, 18L) that stereoscopically capture a physical space and output a pair of stereoscopic images, and display units (13R, 13L) for displaying images for the right eye and images for the left eye. Image sensing parameters that are previously measured for the image-sensing units are stored in image sensing parameter storage units (26R, 26L). As a result, a difference in parallax between captured images of a physical space and images of a virtual object is reduced.Type: GrantFiled: March 7, 2008Date of Patent: May 6, 2014Assignee: Canon Kabushiki KaishaInventors: Toshiyuki Yasuda, Toshiyuki Okuma, Yoshihiro Saito, Toshiki Ishino, Takaaki Nakabayashi
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Publication number: 20120280007Abstract: A head-mounted device for mounting on the head of a user includes a first pressing member for pressing a first portion of the head from a first direction; a second pressing member for pressing a second portion of the head from a second direction that is different from the first direction; a string member that concatenates the first pressing member and the second pressing member; a structure that guides the string member so that the first and the second pressing members move in the first and the second directions, respectively, according to changes in the length of the string member; and an adjusting unit that adjusts the length of the string member.Type: ApplicationFiled: July 20, 2012Publication date: November 8, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Takaaki Nakabayashi, Toshiyuki Yasuda, Toshiki Ishino, Yoshihiro Saito, Toshiyuki Okuma, Kazuhide Miyata, Hiroshi Komatsu
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Publication number: 20120268352Abstract: A head-mounted device mounted on a wearer's head has a first pressing unit to press against the wearer's head from a position of his/her medulla, a second pressing unit to press against the wearer's head in an opposite direction to a pressing direction of the first pressing unit, and a mounting unit to mount the head-mounted device on the wearer's head by adjusting at least one of the first pressing unit and the second pressing unit.Type: ApplicationFiled: July 5, 2012Publication date: October 25, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Toshiki Ishino, Takaaki Nakabayashi, Yoshihiro Saito, Toshiyuki Okuma
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Patent number: 8237627Abstract: A head-mounted device for mounting on the head of a user includes a first pressing member for pressing a first portion of the head from a first direction; a second pressing member for pressing a second portion of the head from a second direction that is different from the first direction; a string member that concatenates the first pressing member and the second pressing member; a structure that guides the string member so that the first and the second pressing members move in the first and the second directions, respectively, according to changes in the length of the string member; and an adjusting unit that adjusts the length of the string member.Type: GrantFiled: October 22, 2008Date of Patent: August 7, 2012Assignee: Canon Kabushiki KaishaInventors: Takaaki Nakabayashi, Toshiyuki Yasuda, Toshiki Ishino, Yoshihiro Saito, Toshiyuki Okuma, Kazuhide Miyata, Hiroshi Komatsu
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Patent number: 8237626Abstract: A head-mounted device mounted on a wearer's head has a first pressing unit to press against the wearer's head from a position of his/her medulla, a second pressing unit to press against the wearer's head in an opposite direction to a pressing direction of the first pressing unit, and a mounting unit to mount the head-mounted device on the wearer's head by adjusting at least one of the first pressing unit and the second pressing unit.Type: GrantFiled: March 26, 2008Date of Patent: August 7, 2012Assignee: Canon Kabushiki KaishaInventors: Toshiki Ishino, Takaaki Nakabayashi, Yoshihiro Saito, Toshiyuki Okuma
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Patent number: 8035576Abstract: To shield a frame area 203b, a frame-like shield member 501 is superimposed over an LCD 203 while being separated from the LCD 203 by a distance L. The distance L satisfies L<2×(B?A)×f/D where f is a focal length of an optical system, D is a human pupil diameter determined statistically in advance, B is a width of the frame area, and A is a value determined statistically in advance as a width which will not be able to be shielded on a side of the frame area to be shielded by a side of the shield member.Type: GrantFiled: February 5, 2008Date of Patent: October 11, 2011Assignee: Canon Kabushiki KaishaInventors: Toshiki Ishino, Toshiyuki Okuma, Takaaki Nakabayashi, Yoshihiro Saito
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Patent number: 7956822Abstract: This specification discloses a mounting mechanism for a display portion onto the head in which the movement range of a wearer is not restricted and it becomes possible to make the display portion follow the head. This mounting mechanism has a head mounting portion for mounting the display portion on the head, a weight supporting portion mounted on any other body portion than the head for supporting part of the weight of the head mounting portion, and a connecting member for connecting the head mounting portion and the weight supporting portion together so that the head mounting portion may be movable following the movement of the head.Type: GrantFiled: July 11, 2006Date of Patent: June 7, 2011Assignee: Canon Kabushiki KaishaInventors: Takaaki Nakabayashi, Yoshihiro Saito, Toshiyuki Okuma
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Patent number: 7887209Abstract: A light source device includes at least one dot-like light source, a substrate where the dot-like light source is arranged, and a reflection member which is arrange to be in contact with a light-emitting surface of the dot-like light source and cover the light-emitting surface. The reflection member further includes an opening to pass therethrough a beam emitted from the dot-like light source.Type: GrantFiled: April 26, 2007Date of Patent: February 15, 2011Assignee: Canon Kabushiki KaishaInventors: Toshiki Ishino, Toshiyuki Okuma, Takaaki Nakabayashi, Yoshihiro Saito
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Publication number: 20100327028Abstract: A head-mountable apparatus mountable on a head of an observer comprises a first pressing member which presses a first portion of the head; a second pressing member which presses a second portion of the head; and adjustment unit adapted to move the first pressing member and the second pressing member to positions where the first pressing member and the second pressing member respectively press the first portion and the second portion.Type: ApplicationFiled: June 10, 2010Publication date: December 30, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Takaaki Nakabayashi, Toshiyuki Yasuda, Toshiki Ishino, Yoshihiro Saito, Toshiyuki Okuma, Kazuhide Miyata
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Patent number: 7842400Abstract: The present invention provides a surface treated steel sheet including a steel sheet; a plating layer containing at least one metal selected from the group consisting of zinc and aluminum on a surface of the steel sheet; and a film on the plating layer, the film containing at least one metal selected from the group consisting of Al, Mg, and Zn, a tetravalent vanadium compound, and a phosphoric acid group. This surface treated steel sheet exhibits excellent corrosion resistance and excellent surface appearance without containing hazardous substances, such as hexavalent chromium, in the film.Type: GrantFiled: July 28, 2004Date of Patent: November 30, 2010Assignee: JFE Steel CorporationInventors: Takafumi Yamaji, Reiko Yamaji, legal representative, Akira Matsuzaki, Kazuhisa Okai, Keiji Yoshida, Masaaki Yamashita, Yuichi Fukushima, Toshiyuki Okuma
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Publication number: 20100026787Abstract: The invention provides a head mounted image-sensing display device including a pair of image-sensing units (18R, 18L) that stereoscopically capture a physical space and output a pair of stereoscopic images, and display units (13R, 13L) for displaying images for the right eye and images for the left eye. Image sensing parameters that are previously measured for the image-sensing units are stored in image sensing parameter storage units (26R, 26L). As a result, a difference in parallax between captured images of a physical space and images of a virtual object is reduced.Type: ApplicationFiled: March 7, 2007Publication date: February 4, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Toshiyuki Yasuda, Toshiyuki Okuma, Yoshihiro Saito, Toshiki Ishino, Takaaki Nakabayashi
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Publication number: 20090230229Abstract: A winding device includes a winding member that rotates to wind a flexible member therearound, a first rotating member that is rotatable, a second rotating member that is rotatable coaxially with the winding member and has a smaller resistance to rotation in a predetermined direction than that to rotation in a direction opposite the predetermined direction, and an engaging member. When the first rotating member is subjected to a first torque, the engaging member brings the winding member, the first rotating member, and the second rotating member into engagement with one another, so that the winding member becomes rotatable together with the first rotating member in the predetermined direction. When the first rotating member is subjected to a second torque in a direction opposite that of the first torque, the engaging member releases the engagement, so that the winding member becomes rotatable in the direction opposite the predetermined direction.Type: ApplicationFiled: March 13, 2009Publication date: September 17, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Toshiyuki Yasuda, Toshiki Ishino, Takaaki Nakabayashi, Yoshihiro Saito, Toshiyuki Okuma, Minoru Tsuji
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Publication number: 20090128450Abstract: A head-mounted device for mounting on the head of a user includes a first pressing member for pressing a first portion of the head from a first direction; a second pressing member for pressing a second portion of the head from a second direction that is different from the first direction; a string member that concatenates the first pressing member and the second pressing member; a structure that guides the string member so that the first and the second pressing members move in the first and the second directions, respectively, according to changes in the length of the string member; and an adjusting unit that adjusts the length of the string member.Type: ApplicationFiled: October 22, 2008Publication date: May 21, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Takaaki Nakabayashi, Toshiyuki Yasuda, Toshiki Ishino, Yoshihiro Saito, Toshiyuki Okuma, Kazuhide Miyata, Hiroshi Komatsu