Patents by Inventor Takaaki Yokoyama
Takaaki Yokoyama 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).
-
Publication number: 20240105737Abstract: Provided is a display device with extremely high resolution, a display device with higher display quality, a display device with improved viewing angle characteristics, or a flexible display device. Same-color subpixels are arranged in a zigzag pattern in a predetermined direction. In other words, when attention is paid to a subpixel, another two subpixels exhibiting the same color as the subpixel are preferably located upper right and lower right or upper left and lower left. Each pixel includes three subpixels arranged in an L shape. In addition, two pixels are combined so that pixel units including subpixel are arranged in matrix of 3×2.Type: ApplicationFiled: December 11, 2023Publication date: March 28, 2024Inventors: Hisao IKEDA, Kouhei TOYOTAKA, Hideaki SHISHIDO, Hiroyuki MIYAKE, Kohei YOKOYAMA, Yasuhiro JINBO, Yoshitaka DOZEN, Takaaki NAGATA, Shinichi HIRASA
-
Patent number: 11594353Abstract: A sintered magnet contains Sm—Fe—N-based crystal grains and has high coercivity; and a magnetic powder is capable of forming a sintered magnet without lowering the coercivity even if heat is generated in association with the sintering. A sintered magnet comprises a crystal phase composed of a plurality of Sm—Fe—N-based crystal grains and a nonmagnetic metal phase present between the Sm—Fe—N crystal grains adjacent to each other, wherein a ratio of Fe peak intensity IFe to SmFeN peak intensity ISmFeN measured by an X-ray diffraction method is 0.2 or less. A magnetic powder comprises Sm—Fe—N-based crystal particles and a nonmagnetic metal layer covering surfaces of the Sm—Fe—N crystal particles.Type: GrantFiled: July 8, 2019Date of Patent: February 28, 2023Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, Murata Manufacturing Co., Ltd.Inventors: Kenta Takagi, Wataru Yamaguchi, Takaaki Yokoyama, Kenji Sakaguchi, Kazuhiro Yoshii, Yuji Yokoyama
-
Publication number: 20220037065Abstract: A Sm—Fe—N-based magnet powder that includes a Sm—Fe—N-based magnetic material powder, wherein an average particle size of the Sm—Fe—N-based magnetic material powder is not larger than 5 ?m, and a full width at half maximum of a diffraction peak of a (220) plane in an X-ray diffraction profile of the Sm—Fe—N-based magnetic material powder is not larger than 0.0033 ?. Also disclosed is a Sm—Fe—N-based sintered magnet that includes a sintered body of a Sm—Fe—N-based magnetic material, wherein an average grain size of crystal grains of the Sm—Fe—N-based magnetic material is not larger than 5 ?m, and a full width at half maximum of a diffraction peak of a (220) plane in an X-ray diffraction profile of the Sm—Fe—N-based magnetic material is not larger than 0.0033 ?.Type: ApplicationFiled: September 29, 2021Publication date: February 3, 2022Inventors: Kenta Takagi, Wataru Yamaguchi, Takaaki Yokoyama, Ryoichi Yamagata, Yosuke Sato
-
Publication number: 20210005897Abstract: An alkaline battery includes a tubular battery case, a positive electrode filled in the battery case and including a stack of n pieces of hollow tubular pellets, a negative electrode disposed in hollow portions of the pellets, a separator disposed between the positive electrode and the negative electrode, and an alkaline electrolytic solution. The battery case includes a body portion having a thickness of 0.15 mm or less. The positive electrode contains manganese dioxide and a conductive agent, and n is an integer of 3 or more. First resistance is higher than second resistance, where the first resistance is resistance of at least one pellet positioned in a middle portion in a height direction of the stack, and the second resistance is resistance of at least one pellet positioned in end portions in the height direction of the stack.Type: ApplicationFiled: October 29, 2018Publication date: January 7, 2021Inventor: TAKAAKI YOKOYAMA
-
Publication number: 20190333661Abstract: A sintered magnet contains Sm—Fe—N-based crystal grains and has high coercivity; and a magnetic powder is capable of forming a sintered magnet without lowering the coercivity even if heat is generated in association with the sintering. A sintered magnet comprises a crystal phase composed of a plurality of Sm—Fe—N-based crystal grains and a nonmagnetic metal phase present between the Sm—Fe—N crystal grains adjacent to each other, wherein a ratio of Fe peak intensity IFe to SmFeN peak intensity ISmFeN measured by an X-ray diffraction method is 0.2 or less. A magnetic powder comprises Sm—Fe—N-based crystal particles and a nonmagnetic metal layer covering surfaces of the Sm—Fe—N crystal particles.Type: ApplicationFiled: July 8, 2019Publication date: October 31, 2019Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, Murata Manufacturing Co., Ltd.Inventors: Kenta TAKAGI, Wataru YAMAGUCHI, Takaaki YOKOYAMA, Kenji SAKAGUCHI, Kazuhiro YOSHII, Yuji YOKOYAMA
-
Publication number: 20160154118Abstract: A first calculation unit calculates a moving average (dose rate) using a relatively long averaging period (T). A second calculation unit calculates an integrated value (dose rate) using a relatively short time constant (?). In a state in which the moving average is displayed, an alarm determination unit identifies a dose abnormality on the basis of the integrated value. Within a measurement start period, a display switching determination unit identifies a constant dose rate state on the basis of the integrated value. A restoration determination unit identifies the restoration of a dose rate on the basis of the integrated value. If a dose rate is displayed using a large degree of smoothing, sudden increases, and the like, in the dose rate can be identified quickly.Type: ApplicationFiled: July 17, 2014Publication date: June 2, 2016Applicant: HITACHI ALOKA MEDICAL, LTD.Inventors: Toshiro OBATA, Takaaki YOKOYAMA, Toshiya HONDA, Akihito YAMAGUCHI
-
Patent number: 7891066Abstract: A plate material vertical processing line that is capable of subjecting large-sized and thinned glass plates to scribing, venting, etc without degrading their quality, comprises a plurality of processing devices each having a modular structure; wherein each of the processing devices includes a platform; a belt conveyor that is mounted on the platform and is configured to convey a glass plate placed in a substantially upright position while supporting a lower end of the glass plate; and a fluid guide that is mounted on the platform and is configured to apply a fluid pressure to a surface of the glass plate to support the glass plate in the substantially upright position and in a non-contact state; and wherein the processing devices include a combination of at least two processing devices selected from a scribing device, a venting device, a chamfering device, a cleaning agent washing device, a water washing device, a high-pressure water spray device, and a glass plate turn device.Type: GrantFiled: February 18, 2004Date of Patent: February 22, 2011Assignees: Kawasaki Plant Systems Kabushiki Kaisha, Corning Japan K.K.Inventors: Yoshiaki Aoki, Keiji Tsujita, Morimasa Kuge, Takaaki Yokoyama, Takashi Sakurai, Michio Suzuki, Masayuki Anada, Masayuki Shinkai
-
Patent number: 7759697Abstract: A semiconductor device is provided which comprises a thermally radiative and electrically conductive support plate 1; and a regulatory semiconducting element 2 mounted on one main surface of support plate 1 through an insulator 3. Insulator 3 comprises an insulative layer 3a mounted on support plate 1 and an adiabatic layer 3b interposed between insulative layer 3a and regulatory semiconducting element 2 to fully protect regulatory semiconducting element 2 from heated environment therearound in the semiconductor device.Type: GrantFiled: March 28, 2005Date of Patent: July 20, 2010Assignee: Sanken Electric Co., Ltd.Inventor: Takaaki Yokoyama
-
Publication number: 20070271756Abstract: A plate material vertical processing line that is capable of subjecting large-sized and thinned glass plates to scribing, venting, etc without degrading their quality, comprises a plurality of processing devices each having a modular structure; wherein each of the processing devices includes a platform; a belt conveyor that is mounted on the platform and is configured to convey a glass plate placed in a substantially upright position while supporting a lower end of the glass plate; and a fluid guide that is mounted on the platform and is configured to apply a fluid pressure to a surface of the glass plate to support the glass plate in the substantially upright position and in a non-contact state; and wherein the processing devices include a combination of at least two processing devices selected from a scribing device, a venting device, a chamfering device, a cleaning agent washing device, a water washing device, a high-pressure water spray device, and a glass plate turn device.Type: ApplicationFiled: February 18, 2004Publication date: November 29, 2007Applicants: Kawasaki Plant Systems Kabushiki Kaisha, Corning Japan K.K.Inventors: Yoshiaki Aoki, Keiji Tsujita, Morimasa Kuge, Takaaki Yokoyama, Takashi Sakurai, Michio Suzuki, Masayuki Anada, Masayuki Shinkai
-
Publication number: 20070206358Abstract: A semiconductor device is provided which comprises a thermally radiative and electrically conductive support plate 1; and a regulatory semiconducting element 2 mounted on one main surface of support plate 1 through an insulator 3. Insulator 3 comprises an insulative layer 3a mounted on support plate 1 and an adiabatic layer 3b interposed between insulative layer 3a and regulatory semiconducting element 2 to fully protect regulatory semiconducting element 2 from heated environment therearound in the semiconductor device.Type: ApplicationFiled: March 28, 2005Publication date: September 6, 2007Inventor: Takaaki Yokoyama
-
Patent number: 6297412Abstract: A process for purifying difluoromethane, which comprises subjecting a mixture comprising difluoromethane and hydrogen fluoride to extraction treatment with at least one extractant selected from the following (a) and (b) to separate it by liquid separation into an extractant layer comprising the difluoromethane and the extractant as the main components, and a hydrogen fluoride layer comprising the hydrogen fluoride as the main component, and separating the difluoromethane from the extractant layer: (a) Dichloromethane (b) Chlorofluoromethane.Type: GrantFiled: February 21, 2001Date of Patent: October 2, 2001Assignee: Asahi Glass Company, LimitedInventors: Takaaki Yokoyama, Koichi Yanase, Yasuhiro Suzuki
-
Publication number: 20010021793Abstract: A process for purifying difluoromethane, which comprises subjecting a mixture comprising difluoromethane and hydrogen fluoride to extraction treatment with at least one extractant selected from the following (a) and (b) to separate it by liquid separation into an extractant layer comprising the difluoromethane and the extractant as the main components, and a hydrogen fluoride layer comprising the hydrogen fluoride as the main component, and separating the difluoromethane from the extractant layer:Type: ApplicationFiled: February 21, 2001Publication date: September 13, 2001Applicant: Asahi Glass Company, LimitedInventors: Takaaki Yokoyama, Koichi Yanase, Yasuhiro Suzuki
-
Patent number: 5487903Abstract: A method for improving the qualities of meat which comprises treating a meat piece with an ester represented by the following formula (1): ##STR1## wherein one of R.sup.1 and R.sup.2 represents a saturated or unsaturated monocarboxylic acid residue having 2 to 24 carbon atoms while the other represents a dicarboxylic acid residue;a meat piece which has been treated by this method, and a composition comprising the ester and a protease are disclosed. By treating a meat (for example, cattle meat, fowl meat) in accordance with the method of the present invention, a meat piece having a tender texture and a high juiciness can be obtained, in particular, in the case of a meat piece of a certain size or larger or minced meat.Type: GrantFiled: December 19, 1994Date of Patent: January 30, 1996Assignee: Kao CorporationInventors: Takaaki Yokoyama, Hirotaka Sasaki, Yumiko Ohno, Kentaro Nakajima, Yasuhiro Miura, Hideki Mori
-
Patent number: 5133921Abstract: A method for manufacturing plastic encapsulated electronic semiconductor devices is disclosed in which a support pad is firmly fixed by slidable means and also by mold halves in molding operation. Slidable means is moved outward of a cavity when it is filled with the plastic encapsulating material to the half volume. Spaces, which are formed after movement of slidable means, are filled with the plastic encapsulating material directly poured through a gate. The encapsulated semiconductor devices indicate excellent thermal radiation and dielectric strength characteristics without formation of voids or unfilled portions in the plastic.Type: GrantFiled: November 19, 1990Date of Patent: July 28, 1992Assignee: Sanken Electric Co., Ltd.Inventor: Takaaki Yokoyama
-
Patent number: 5049055Abstract: Apparatus for manufacturing plastic encapsulated electronic semiconductor devices is disclosed in which a support pad is firmly fixed by slidable means and also by mold halves in molding operation. Slidable means is moved outward of a cavity when it is filled with the plastic encapsulating material to the half volume. Spaces, which are formed after movement of slidable means, are filled with the plastic encapsulating material directly poured through a gate. The encapsulated semiconductor devices indicate excellent thermal radiation and dielectric strength characteristics without formation of voids or unfilled portions in the plastic.Type: GrantFiled: April 23, 1990Date of Patent: September 17, 1991Assignee: Sanken Electric Co., Ltd.Inventor: Takaaki Yokoyama
-
Patent number: 4954307Abstract: A method for manufacturing plastic encapsulated electronic semiconductor devices is disclosed in which a support pad is firmly fixed by slidable means and also by mold halves in molding operation. Slidable means is moved outward of a cavity when it is filled with the plastic encapsulating material to the half volume. Spaces, which are formed after movement of slidable means, are filled with the plastic encapsulating material directly poured through a gate. The encapsulated semiconductor devices indicate excellent thermal radiation and dielectric strength characteristics without formation of voids or unfilled portions in the plastic.Type: GrantFiled: December 28, 1988Date of Patent: September 4, 1990Assignee: Sanken Electric Co., Ltd.Inventor: Takaaki Yokoyama