Patents by Inventor Takahiro Sahara
Takahiro Sahara 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: 11635329Abstract: A transmission type color calibration chart includes a transparent substrate and a color bar group formed on the transparent substrate, wherein the color bar group is constituted by color bars of a plurality of colors containing at least a first color and a second color arranged in a pattern in no particular order, coordinate points of the first color are within a region encompassed by the four points (0.351, 0.649), (0.547, 0.453), (0.380, 0.506) and (0.433, 0.464) on an xy chromaticity diagram, coordinate points of the second color are within a region encompassed by the four points (0.125, 0.489), (0.112, 0.229), (0.270, 0.407) and (0.224, 0.242) on an xy chromaticity diagram, and the transmission spectrum of the first color's color bar and the transmission spectrum of the second color's color bar have peak tops that are respectively separated.Type: GrantFiled: April 22, 2022Date of Patent: April 25, 2023Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Yoshihiko Ogino, Yoichi Kajimura, Takahiro Sahara, Kunio Taguchi, Yasushi Sasagawa, Hitoshi Mizuno, Shota Mitani
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Publication number: 20220244105Abstract: A transmission type color calibration chart includes a transparent substrate and a color bar group formed on the transparent substrate, wherein the color bar group is constituted by color bars of a plurality of colors containing at least a first color and a second color arranged in a pattern in no particular order, coordinate points of the first color are within a region encompassed by the four points (0.351, 0.649), (0.547, 0.453), (0.380, 0.506) and (0.433, 0.464) on an xy chromaticity diagram, coordinate points of the second color are within a region encompassed by the four points (0.125, 0.489), (0.112, 0.229), (0.270, 0.407) and (0.224, 0.242) on an xy chromaticity diagram, and the transmission spectrum of the first color's color bar and the transmission spectrum of the second color's color bar have peak tops that are respectively separated.Type: ApplicationFiled: April 22, 2022Publication date: August 4, 2022Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Yoshihiko OGINO, Yoichi KAJIMURA, Takahiro SAHARA, Kunio TAGUCHI, Yasushi SASAGAWA, Hitoshi MIZUNO, Shota MITANI
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Patent number: 11397110Abstract: A color calibration viewer used in color calibration, wherein: the relative intensity at a wavelength of 505 nm is 0.80 or more and 0.95 or less, and the relative intensity at a wavelength of 620 nm is 0.65 or more and 0.80 or less, where 1 designates the optical intensity of a peak top in a first wavelength region at a wavelength of 440 nm or more and 470 nm or less; and the ratio (A/B) of A and B is 1.00 or more and 1.46 or less, where A designates the optical intensity at a wavelength of 505 nm, and B designates the optical intensity at a wavelength of 620 nm.Type: GrantFiled: October 18, 2018Date of Patent: July 26, 2022Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Yoshihiko Ogino, Keiichi Ganbe, Kazumasa Onuki, Takahiro Sahara, Yoichi Kajimura
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Patent number: 11371886Abstract: A transmission type color calibration chart includes a transparent substrate and a color bar group formed on the transparent substrate, wherein the color bar group is constituted by color bars of a plurality of colors containing at least a first color and a second color arranged in a pattern in no particular order, coordinate points of the first color are within a region encompassed by the four points (0.351, 0.649), (0.547, 0.453), (0.380, 0.506) and (0.433, 0.464) on an xy chromaticity diagram, coordinate points of the second color are within a region encompassed by the four points (0.125, 0.489), (0.112, 0.229), (0.270, 0.407) and (0.224, 0.242) on an xy chromaticity diagram, and the transmission spectrum of the first color's color bar and the transmission spectrum of the second color's color bar have peak tops that are respectively separated.Type: GrantFiled: September 1, 2021Date of Patent: June 28, 2022Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Yoshihiko Ogino, Yoichi Kajimura, Takahiro Sahara, Kunio Taguchi, Yasushi Sasagawa, Hitoshi Mizuno, Shota Mitani
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Patent number: 11340115Abstract: A transmission type color calibration chart comprises a transparent substrate and a color bar group formed on the transparent substrate, wherein the color bar group is constituted by color bars of a plurality of colors containing at least a first color and a second color arranged in a pattern in no particular order, coordinate points of the first color are within a region encompassed by the four points (0.351, 0.649), (0.547, 0.453), (0.380, 0.506) and (0.433, 0.464) on an xy chromaticity diagram, coordinate points of the second color are within a region encompassed by the four points (0.125, 0.489), (0.112, 0.229), (0.270, 0.407) and (0.224, 0.242) on an xy chromaticity diagram, and the transmission spectrum of the first color's color bar and the transmission spectrum of the second color's color bar have peak tops that are respectively separated.Type: GrantFiled: March 30, 2017Date of Patent: May 24, 2022Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Yoshihiko Ogino, Yoichi Kajimura, Takahiro Sahara, Kunio Taguchi, Yasushi Sasagawa, Hitoshi Mizuno, Shota Mitani
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Publication number: 20210396582Abstract: A transmission type color calibration chart includes a transparent substrate and a color bar group formed on the transparent substrate, wherein the color bar group is constituted by color bars of a plurality of colors containing at least a first color and a second color arranged in a pattern in no particular order, coordinate points of the first color are within a region encompassed by the four points (0.351, 0.649), (0.547, 0.453), (0.380, 0.506) and (0.433, 0.464) on an xy chromaticity diagram, coordinate points of the second color are within a region encompassed by the four points (0.125, 0.489), (0.112, 0.229), (0.270, 0.407) and (0.224, 0.242) on an xy chromaticity diagram, and the transmission spectrum of the first color's color bar and the transmission spectrum of the second color's color bar have peak tops that are respectively separated.Type: ApplicationFiled: September 1, 2021Publication date: December 23, 2021Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Yoshihiko OGINO, Yoichi KAJIMURA, Takahiro SAHARA, Kunio TAGUCHI, Yasushi SASAGAWA, Hitoshi MIZUNO, Shota MITANI
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Publication number: 20200284656Abstract: A color calibration viewer used in color calibration, wherein: the relative intensity at a wavelength of 505 nm is 0.80 or more and 0.95 or less, and the relative intensity at a wavelength of 620 nm is 0.65 or more and 0.80 or less, where 1 designates the optical intensity of a peak top in a first wavelength region at a wavelength of 440 nm or more and 470 nm or less; and the ratio (A/B) of A and B is 1.00 or more and 1.46 or less, where A designates the optical intensity at a wavelength of 505 nm, and B designates the optical intensity at a wavelength of 620 nm.Type: ApplicationFiled: October 18, 2018Publication date: September 10, 2020Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Yoshihiko OGINO, Keiichi GANBE, Kazumasa ONUKI, Takahiro SAHARA, Yoichi KAJIMURA
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Publication number: 20190137340Abstract: A transmission type color calibration chart includes a transparent substrate and a color bar group formed on the transparent substrate, wherein the color bar group is constituted by color bars of a plurality of colors containing at least a first color and a second color arranged in a pattern in no particular order, coordinate points of the first color are within a region encompassed by the four points (0.351, 0.649), (0.547, 0.453), (0.380, 0.506) and (0.433, 0.464) on an xy chromaticity diagram, coordinate points of the second color are within a region encompassed by the four points (0.125, 0.489), (0.112, 0.229), (0.270, 0.407) and (0.224, 0.242) on an xy chromaticity diagram, and the transmission spectrum of the first color's color bar and the transmission spectrum of the second color's color bar have peak tops that are respectively separated.Type: ApplicationFiled: March 30, 2017Publication date: May 9, 2019Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Yoshihiko OGINO, Yoichi KAJIMURA, Takahiro SAHARA, Kunio TAGUCHI, Yasushi SASAGAWA, Hitoshi MIZUNO, Shota MITANI
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Patent number: 10126521Abstract: There is provided a leaf spring which can prevent a reduction in the spring strength and can also prevent a reduction in the electrical conductivity when the thickness of the leaf spring is decreased. The leaf spring includes an outer frame portion an inner frame portion 5b, 11b disposed inside the outer frame portion 5a, 11a, and spring portions provided between the inner frame portion and the outer frame portion The leaf spring is made of a Cu-based alloy, and has an electrical conductivity of not less than 8% IACS and a 0.2% proof stress of not less than 900 MPa.Type: GrantFiled: April 23, 2014Date of Patent: November 13, 2018Assignees: DAI NIPPON PRINTING CO., LTD., ALPS ELECTRIC CO., LTD.Inventors: Yoshihiko Ogino, Chikao Ikenaga, Takahiro Sahara, Masahiro Nagata
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Patent number: 9939037Abstract: A leaf spring frame member (50) comprises: a plurality of leaf spring product parts (11A) each of which includes an outer frame part (11a), an inner frame part (11b) and spring parts (11c); and a support frame (51) which is arranged around the leaf spring product parts (11A) and supports the leaf spring product parts (11A). Each of the leaf spring product parts (11A) and the support frame (51) are connected to each other by connection parts (52). A breaking region (53), which is breakable, is formed in the connection part (52). An outer edge (53a) of the breaking region (53) is situated on the inside of an outer edge (11h) of the leaf spring product part (11A).Type: GrantFiled: June 12, 2014Date of Patent: April 10, 2018Assignees: DAI NIPPON PRINTING CO., LTD., ALPS ELECTRIC CO., LTD.Inventors: Yoshihiko Ogino, Takahiro Sahara, Kyoji Yamamoto, Koji Tomita
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Publication number: 20160146280Abstract: A leaf spring frame member (50) comprises: a plurality of leaf spring product parts (11A) each of which includes an outer frame part (11a), an inner frame part (11b) and spring parts (11c); and a support frame (51) which is arranged around the leaf spring product parts (11A) and supports the leaf spring product parts (11A). Each of the leaf spring product parts (11A) and the support frame (51) are connected to each other by connection parts (52). A breaking region (53), which is breakable, is formed in the connection part (52). An outer edge (53a) of the breaking region (53) is situated on the inside of an outer edge (11h) of the leaf spring product part (11A).Type: ApplicationFiled: June 12, 2014Publication date: May 26, 2016Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Yoshihiko OGINO, Takahiro SAHARA, Kyoji YAMAMOTO, Koji TOMITA
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Publication number: 20160077303Abstract: There is provided a leaf spring which can prevent a reduction in the spring strength and can also prevent a reduction in the electrical conductivity when the thickness of the leaf spring is decreased. The leaf spring includes an outer frame portion an inner frame portion 5b, 11b disposed inside the outer frame portion 5a, 11a, and spring portions provided between the inner frame portion and the outer frame portion The leaf spring is made of a Cu-based alloy, and has an electrical conductivity of not less than 8% IACS and a 0.2% proof stress of not less than 900 MPa.Type: ApplicationFiled: April 23, 2014Publication date: March 17, 2016Inventors: Yoshihiko OGINO, Chikao IKENAGA, Takahiro SAHARA, Masahiro NAGATA
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Patent number: 8942003Abstract: A multilayered printed wiring board includes a plurality of insulating layers; a plurality of wiring layers which are located between the corresponding adjacent insulating layers; and a plurality of interlayer connection conductors for electrically connecting the wiring layers through the insulating layers; wherein a cavity is formed through one or more of the insulating layers so as to insert a first electric/electronic component and an area for embedding a second electric/electronic component is defined for the insulating layers.Type: GrantFiled: February 14, 2013Date of Patent: January 27, 2015Assignee: Dai Nippon Printing Co., Ltd.Inventors: Takahiro Sahara, Atsushi Kobayashi, Kiyoshi Takeuchi, Masahiko Igaue
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Patent number: 8592686Abstract: A method for manufacturing a printed circuit board assembled panel by a simple process with an excellent material yield and a high conforming product rate. Unit printed circuit boards previously manufactured are arranged in a frame in a prescribed relationship. Then, the printed circuit boards are fixed to one another, and the printed circuit board and the frame body are fixed to one another.Type: GrantFiled: April 4, 2005Date of Patent: November 26, 2013Assignee: Dai Nippon Printing Co., Ltd.Inventors: Atsushi Kobayashi, Kazuo Umeda, Wataru Gotou, Takahiro Sahara, Susumu Nakazawa, Kiyoshi Takeuchi, Takayuki Terauchi
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Publication number: 20130220686Abstract: A multilayered printed wiring board includes a plurality of insulating layers; a plurality of wiring layers which are located between the corresponding adjacent insulating layers; and a plurality of interlayer connection conductors for electrically connecting the wiring layers through the insulating layers; wherein a cavity is formed through one or more of the insulating layers so as to insert a first electric/electronic component and an area for embedding a second electric/electronic component is defined for the insulating layers.Type: ApplicationFiled: February 14, 2013Publication date: August 29, 2013Inventors: Takahiro Sahara, Atsushi Kobayashi, Kiyoshi Takeuchi, Masahiko Igaue
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Patent number: 8476535Abstract: A multilayered printed wiring board includes a flexible wiring board with wiring layers on both main surfaces thereof; a rigid wiring board with wiring layers on both main surfaces thereof and formed opposite to the flexible wiring board under the condition that an area of the main surface of the rigid wiring board is smaller than an area of the main surface of the flexible wiring board; and an electric/electronic component embedded in the rigid wiring board.Type: GrantFiled: November 9, 2010Date of Patent: July 2, 2013Assignee: Dai Nippon Printing Co., Ltd.Inventors: Takahiro Sahara, Atsushi Kobayashi, Masahiko Igaue, Kiyoshi Takeuchi
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Patent number: 8400776Abstract: A multilayered printed wiring board includes a plurality of insulating layers; a plurality of wiring layers which are located between the corresponding adjacent insulating layers; and a plurality of interlayer connection conductors for electrically connecting the wiring layers through the insulating layers; wherein a cavity is formed through one or more of the insulating layers so as to insert a first electric/electronic component and an area for embedding a second electric/electronic component is defined for the insulating layers.Type: GrantFiled: July 27, 2007Date of Patent: March 19, 2013Assignee: Dai Nippon Printing Co., Ltd.Inventors: Takahiro Sahara, Atsushi Kobayashi, Kiyoshi Takeuchi, Masahiko Igaue
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Publication number: 20110061903Abstract: A multilayered printed wiring board includes a flexible wiring board with wiring layers on both main surfaces thereof; a rigid wiring board with wiring layers on both main surfaces thereof and formed opposite to the flexible wiring board under the condition that an area of the main surface of the rigid wiring board is smaller than an area of the main surface of the flexible wiring board; and an electric/electronic component embedded in the rigid wiring board.Type: ApplicationFiled: November 9, 2010Publication date: March 17, 2011Inventors: Takahiro Sahara, Atsushi Kobayashi, Masahiko Igaue, Kiyoshi Takeuchi
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Publication number: 20090014205Abstract: A method for manufacturing a printed circuit board assembled panel by a simple process with an excellent material yield and a high conforming product rate. Unit printed circuit boards previously manufactured are arranged in a frame in a prescribed relationship. Then, the printed circuit boards are fixed to one another, and the printed circuit board and the frame body are fixed to one another.Type: ApplicationFiled: April 4, 2005Publication date: January 15, 2009Inventors: Atsushi Kobayashi, Kazuo Umeda, Wataru Gotou, Takahiro Sahara, Susumu Nakazawa, Kiyoshi Takeuchi, Takayuki Terauchi
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Publication number: 20080047737Abstract: A multilayered printed wiring board includes a flexible wiring board with wiring layers on both main surfaces thereof; a rigid wiring board with wiring layers on both main surfaces thereof and formed opposite to the flexible wiring board under the condition that an area of the main surface of the rigid wiring board is smaller than an area of the main surface of the flexible wiring board; and an electric/electronic component embedded in the rigid wiring board.Type: ApplicationFiled: July 26, 2007Publication date: February 28, 2008Inventors: Takahiro Sahara, Atsushi Kobayashi, Masahiko Igaue, Kiyoshi Takeuchi