Patents by Inventor Tatsuya Nakajima
Tatsuya Nakajima 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: 20240145166Abstract: One object is to manufacture a magnetic base body containing soft magnetic metal particles with a high content percentage of Fe. A manufacturing method of a magnetic base body according to one embodiment includes: producing a molded body containing a plurality of soft magnetic metal particles at a filling factor of 85% or higher, each of the plurality of soft magnetic metal particles containing Fe and an element A more apt to oxidation than Fe; and heating the molded body to form an insulating film on a surface of each of the plurality of soft magnetic metal particles, the insulating film containing an oxide of Fe and an oxide of the element A. A content percentage of Fe in the plurality of soft magnetic metal particles after the heating is higher than a content percentage of Fe in the plurality of soft magnetic metal particles before the heating.Type: ApplicationFiled: October 30, 2023Publication date: May 2, 2024Inventors: Tomoya HAGIWARA, Tatsuya TOMITA, Takashi NAKAJIMA
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Publication number: 20240131777Abstract: A method of manufacturing a structure is provided in which a burr portion can be more reliably cut. In a burr portion shaping step, the burr portion is sucked to an engaging portion by a suction part to shape the burr portion along the engaging portion, and in a cutting step, ae movable portion is moved relative to first and second split molds with the burr portion being shaped along the engaging portion, thereby the burr portion is cut from a molded main body along a cutting line.Type: ApplicationFiled: February 18, 2022Publication date: April 25, 2024Applicant: KYORAKU CO., LTD.Inventors: Yuki HARASAWA, Tadatoshi TANJI, Tatsuya FUKUDA, Takurou MATSUDA, Sho NAKAJIMA, Shingo NAGASHIMA
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Patent number: 11962972Abstract: To enhance a sound image localization effect and to ensure a good viewing state in which an image or video and audio have a sense of unity. Provided is a display in which an image is displayed in a display surface, a rear cover disposed on a rear side of the display, a first speaker disposed between the display and the rear cover, and a second speaker disposed between the display and the rear cover and positioned higher than the first speaker. The second speaker outputs audio according to operation of a piezoelectric element, and has a higher audio output band than the first speaker. This enables a user to feel as if the audio is being output from the display being viewed, which enhances the sound image localization effect and ensures a good viewing state in which an image or video and audio have a sense of unity.Type: GrantFiled: November 21, 2019Date of Patent: April 16, 2024Assignee: SONY GROUP CORPORATIONInventors: Masahiro Takahashi, Tatsuya Sakata, Tetsuya Shiroishi, Shigemi Oguchi, Kazumasa Okamoto, Ryosuke Nakajima
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Patent number: 11949100Abstract: The present invention is to provide a cathode active material used for a lithium ion secondary battery which has a large charge-discharge capacity, and excels in charge-discharge cycle properties, output properties and productivity, and, a lithium ion secondary battery using the same. The cathode active material used for a lithium ion secondary battery comprises a lithium transition metal composite oxide represented by the following Formula (1); Li1+aNibCocMndMeO2+?, where, in the formula (1), M is at least one metal element other than Li, Ni, Co, and Mn; and a, b, c, d, e, and ? satisfy the following conditions: ?0.04?a?0.04, 0.80?b<1.00, 0?c?0.04, 0<d<0.20, b+c+d+e=1, ?0.2<?<0.2, and c and d in the Formula (1) satisfy c/d?0.75.Type: GrantFiled: March 4, 2019Date of Patent: April 2, 2024Assignee: Proterial, Ltd.Inventors: Tatsuya Toyama, Shin Takahashi, Hisato Tokoro, Genei Nakajima, Shuichi Takano, Akira Gunji, Akihiko Noie
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Publication number: 20240097342Abstract: An antenna includes a conductive patch. The patch includes, in a plan view, a first power feed-side edge and a first non-power feed-side edge positioned on opposite sides in a first direction in one-to-one relation, and a second power feed-side edge and a second non-power feed-side edge positioned on opposite sides in a second direction intersecting the first direction in one-to-one relation. The patch includes, in the plan view, a first power feed point positioned on a side nearer to the first power feed-side edge and a second power feed point positioned on a side nearer to the second power feed-side edge. In the plan view, at least a portion of the first power feed-side edge expands outward and forms a protrusion. A width of the protrusion in the second direction gradually decreases toward a top of the protrusion. The first power feed point is positioned nearer to the top of the protrusion than a middle of a hill slope of the protrusion in the first direction.Type: ApplicationFiled: February 18, 2022Publication date: March 21, 2024Applicant: KYOCERA CorporationInventors: Tatsuya MORITA, Daisuke YAMAMOTO, Kazuki HAYATA, Takaki NAKAJIMA
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Patent number: 11581559Abstract: A carbon dioxide production system 10A includes: a fuel cell stack 16; a separation unit 20 that separates anode off-gas into a non-fuel gas including at least carbon dioxide and water and a regenerative fuel gas; a second heat exchanger 32 that separates water from the non-fuel gas; a water tank 42; and a carbon dioxide recovery tank 48 that recovers the carbon dioxide after the water has been separated.Type: GrantFiled: January 24, 2019Date of Patent: February 14, 2023Assignee: TOKYO GAS CO., LTD.Inventors: Tatsuya Nakajima, Tatsuki Dohkoh, Marie Shirai
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Publication number: 20210399321Abstract: A fuel cell system including a fuel cell, an off-gas reprocessing unit that is provided downstream of the fuel cell and that at least partially removes at least one of steam or carbon dioxide from an off-gas discharged from the fuel cell, a flow passage that is provided downstream of the off-gas reprocessing unit and that allows a reprocessed off-gas discharged from the off-gas reprocessing unit to flow therethrough, and a controlling unit that modulates the reaction constant Kpa of a reaction A with respect to the reprocessed off-gas discharged from the off-gas reprocessing unit, to 1.22 or more.Type: ApplicationFiled: October 28, 2019Publication date: December 23, 2021Inventors: Kazuo NAKAMURA, Takahiro IDE, Tatsuya NAKAJIMA, Toru HATAE, Tatsuki DOHKOH, Marie SHIRAI, Shunnosuke AKABANE
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Patent number: 10971747Abstract: A fuel cell system that includes a first fuel cell that generates electric power using a hydrogen-containing fuel gas; a second fuel cell that generates electric power using off-gas exhausted from the first fuel cell and containing hydrogen that has not reacted in the first fuel cell; a first control device that controls the electric power output from the first fuel cell by adjusting a current or a voltage being output from the first fuel cell; a second control device that controls the electric power output from the second fuel cell by adjusting a current or a voltage being output from the second fuel cell; and an output control device that controls at least one of the first control device or the second control device such that a total electric power being generated by the first fuel cell and the second fuel cell approaches an electric power demand.Type: GrantFiled: March 1, 2018Date of Patent: April 6, 2021Assignee: TOKYO GAS CO., LTD.Inventors: Tatsuya Nakajima, Shumpei Taku, Kazuki Isshiki
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Publication number: 20210036351Abstract: A carbon dioxide production system 10A includes: a fuel cell stack 16; a separation unit 20 that separates anode off-gas into a non-fuel gas including at least carbon dioxide and water and a regenerative fuel gas; a second heat exchanger 32 that separates water from the non-fuel gas; a water tank 42; and a carbon dioxide recovery tank 48 that recovers the carbon dioxide after the water has been separated.Type: ApplicationFiled: January 24, 2019Publication date: February 4, 2021Inventors: Tatsuya Nakajima, Tatsuki Dohkoh, Marie Shirai
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Publication number: 20200044270Abstract: A fuel cell system that includes a first fuel cell that generates electric power using a hydrogen-containing fuel gas; a second fuel cell that generates electric power using off-gas exhausted from the first fuel cell and containing hydrogen that has not reacted in the first fuel cell; a first control device that controls the electric power output from the first fuel cell by adjusting a current or a voltage being output from the first fuel cell; a second control device that controls the electric power output from the second fuel cell by adjusting a current or a voltage being output from the second fuel cell; and an output control device that controls at least one of the first control device or the second control device such that a total electric power being generated by the first fuel cell and the second fuel cell approaches an electric power demand.Type: ApplicationFiled: March 1, 2018Publication date: February 6, 2020Inventors: Tatsuya Nakajima, Shumpei Taku, Kazuki Isshiki
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Patent number: 8937587Abstract: A temperature estimating apparatus, which is provided for a backlight having a plurality of light source blocks each having one light source or a plurality of light sources so that light emission of the light source of each of the light source blocks can be regulated independently, comprises an acquiring unit which acquires a luminance of the light source for each of the light source blocks; a temperature sensor which measures a temperature of at least any one of an internal and external temperature of a casing of the image display apparatus having the backlight; and an estimating unit which estimates a temperature of the light source for each of the light source blocks on the basis of a measured value obtained by the temperature sensor and a luminance value of the light source of each of the light source blocks acquired by the acquiring unit.Type: GrantFiled: April 18, 2012Date of Patent: January 20, 2015Assignee: Canon Kabushiki KaishaInventor: Tatsuya Nakajima
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Patent number: 8542493Abstract: A flat display apparatus has a flat display panel; a frame that is installed on a rear face side of the display panel; a cover that covers at least a rear face side of the frame; and a high-voltage power supply that applies high voltage to the display panel. The high-voltage power supply has a plurality of cases, each of which encloses one or more transformers and rectifier circuits, and obtains high voltage by connecting the plurality of cases in series, and the plurality of cases are arranged in a space created between the frame and the cover so as to be disposed on a plane in parallel with a screen of the display panel.Type: GrantFiled: July 14, 2010Date of Patent: September 24, 2013Assignee: Canon Kabushiki KaishaInventors: Naoto Abe, Eisaku Tatsumi, Tatsuya Nakajima
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Publication number: 20120274544Abstract: A temperature estimating apparatus, which is provided for a backlight having a plurality of light source blocks each having one light source or a plurality of light sources so that light emission of the light source of each of the light source blocks can be regulated independently, comprises an acquiring unit which acquires a luminance of the light source for each of the light source blocks; a temperature sensor which measures a temperature of at least any one of an internal and external temperature of a casing of the image display apparatus having the backlight; and an estimating unit which estimates a temperature of the light source for each of the light source blocks on the basis of a measured value obtained by the temperature sensor and a luminance value of the light source of each of the light source blocks acquired by the acquiring unit.Type: ApplicationFiled: April 18, 2012Publication date: November 1, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Tatsuya Nakajima
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Publication number: 20110025672Abstract: A flat display apparatus has a flat display panel; a frame that is installed on a rear face side of the display panel; a cover that covers at least a rear face side of the frame; and a high-voltage power supply that applies high voltage to the display panel. The high-voltage power supply has a plurality of cases, each of which encloses one or more transformers and rectifier circuits, and obtains high voltage by connecting the plurality of cases in series, and the plurality of cases are arranged in a space created between the frame and the cover so as to be disposed on a plane in parallel with a screen of the display panel.Type: ApplicationFiled: July 14, 2010Publication date: February 3, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Naoto Abe, Eisaku Tatsumi, Tatsuya Nakajima
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Patent number: 7744290Abstract: The optical fiber connector includes a connector housing (21), having a splice assembly (13) therein, and an end cap (5) attached to one end of the connector housing (21), from which leads out a primary coating portion (3). A boundary (4c) between a portion of the primary coating portion (3), obtained by removing an outer coating (4b) of the inner cover (4) while leaving an inner coating (4a), and a portion obtained by leaving the outer coating (4b) of the inner cover (4), is located in the interior of the connector housing (21). The end cap (5) is provided in the interior thereof with a tubular portion and an extension extending from an end of the tubular portion, the tubular portion including an insert hole for an insertion of the primary coating portion (3) approximately coaxially with a guiding hole formed in the splice assembly accommodated in the connector housing (21) for guiding the primary coating portion (3) leading out from the splice assembly.Type: GrantFiled: October 30, 2006Date of Patent: June 29, 2010Assignees: 3M Innovative Properties Company, Nippon Telegraph and Telephone CorporationInventors: Akihiko Yazaki, Takaya Yamauchi, Tomoyasu Oike, Masanobu Toyonaga, Kuniaki Terakawa, Hiroyuki Tanase, Tatsuya Nakajima, Masashi Awamori
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Publication number: 20090220199Abstract: The optical fiber connector includes a connector housing (21), having a splice assembly (13) therein, and an end cap (5) attached to one end of the connector housing (21), from which leads out a primary coating portion (3). A boundary (4c) between a portion of the primary coating portion (3), obtained by removing an outer coating (4b) of the inner cover (4) while leaving an inner coating (4a), and a portion obtained by leaving the outer coating (4b) of the inner cover (4), is located in the interior of the connector housing (21). The end cap (5) is provided in the interior thereof with a tubular portion and an extension extending from an end of the tubular portion, the tubular portion including an insert hole for an insertion of the primary coating portion (3) approximately coaxially with a guiding hole formed in the splice assembly accommodated in the connector housing (21) for guiding the primary coating portion (3) leading out from the splice assembly.Type: ApplicationFiled: October 30, 2006Publication date: September 3, 2009Inventors: Akihiko Yazaki, Takaya Yamauchi, Tomoyasu Oike, Masanobu Toyonaga, Kuniaki Terakawa, Hiroyuki Tanase, Tatsuya Nakajima, Masashi Awamori
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Patent number: 7341381Abstract: A cantilever type latch having the fixed end on the side of exposing the terminal end surface of the optical fiber is provided on the side of the plug housing. Near the center of the upper surface of the latch, an engaging projection which is to be engaged in the engaging hole formed in the adapter or the receptacle is formed. The engaging projection has the slope which decreases the height toward the fixed end side of the latch, in which the gradient of the slope is nearly equal to or greater than the rotation angle required for the elastic deformation of the latch with the fixed end functioned as the fulcrum. Thereby easy disconnecting of the latch is implemented.Type: GrantFiled: October 27, 2006Date of Patent: March 11, 2008Assignees: The Furukawa Electric Co., Ltd, Nippon Telegraph & Telephone Corporation, Fujikura Ltd., Sumitomo Electric Industries, Ltd.Inventors: Naoko Shimoji, Masato Shiino, Masanobu Toyonaga, Kuniaki Terakawa, Hiroyuki Tanase, Tatsuya Nakajima, Masashi Awamori, Kazuhiro Takizawa, Daigo Saitoh, Kenichiro Ohtsuka, Daizo Nishioka, Masahiro Hamada
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Publication number: 20070098329Abstract: A cantilever type latch having the fixed end on the side of exposing the terminal end surface of the optical fiber is provided on the side of the plug housing. Near the center of the upper surface of the latch, an engaging projection which is to be engaged in the engaging hole formed in the adapter or the receptacle is formed. The engaging projection has the slope which decreases the height toward the fixed end side of the latch, in which the gradient of the slope is nearly equal to or greater than the rotation angle required for the elastic deformation of the latch with the fixed end functioned as the fulcrum. Thereby easy disconnecting of the latch is implemented.Type: ApplicationFiled: October 27, 2006Publication date: May 3, 2007Applicants: The Furukawa Electric Co, Ltd., Nippon Telegraph and Telephone Corporation, Fujikura Ltd., Sumitomo Electric Industries, Ltd.Inventors: Naoko SHIMOJI, Masato Shiino, Masanobu Toyonaga, Kuniaki Terakawa, Hiroyuki Tanase, Tatsuya Nakajima, Masashi Awamori, Kazuhiro Takizawa, Daigo Saitoh, Kenichiro Ohtsuka, Daizo Nishioka, Masahiro Hamada
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Publication number: 20040172527Abstract: Log information disappears when a host device storing the log information, which is histories of respective devices under connection, is disconnected. Further, when USB or the like is used as an interface bus, supplied power has to be limited with consideration to the load on the power supply of the host device.Type: ApplicationFiled: March 4, 2004Publication date: September 2, 2004Applicant: CANON KABUSHIKI KAISHAInventors: Kenichiro Ono, Yoshikazu Shibamiya, Tatsuya Nakajima
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Patent number: 6756974Abstract: A display control apparatus selectively outputs first image data and second image data to a display device on the basis of a switching instruction to instruct the switching of an image to be displayed by the display device and a result of a discrimination to discriminate whether the image displayed by the display device can be switched or not.Type: GrantFiled: September 21, 1998Date of Patent: June 29, 2004Assignee: Canon Kabushiki KaishaInventors: Tatsuya Nakajima, Kenichiro Ono