Patents by Inventor Yoshihito Hirai
Yoshihito Hirai 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).
-
Patent number: 9819093Abstract: An electromagnetic wave absorber and an electromagnetic wave anechoic room using the absorbers. The electromagnetic wave absorber has improved electromagnetic wave absorption characteristics at high frequencies in spite of having a hollow structure. The electromagnetic wave absorber includes a hollow shell with a bottom that is a rectangle. A part of a surface of the hollow shell and an outer face of a planar extension lie in planes that are not parallel to any side of the rectangle. At least the plane that is not parallel to any side of the rectangle is included in a surface of an electromagnetic wave absorption member.Type: GrantFiled: April 29, 2015Date of Patent: November 14, 2017Assignee: TDK CORPORATIONInventors: Toshifumi Saitoh, Yoshihito Hirai, Hiroshi Kurihara, Motonari Yanagawa
-
Patent number: 9626750Abstract: An image processing device that performs image processing on a composite image obtained by merging a first image and a second image having different exposure conditions. A data acquiring unit acquires the composite image and region data indicating a target region of the composite image. A image processing unit performs different image processes between the target region and a region other than the target region based on the region data. The images include a region on which a moving subject is rendered. In the region on which the moving subject is rendered, the composite image is generated by using a pixel value of one of the first image and the second image. The region data represents one or a plurality of regions generated based on the region of the composite image, on which the moving subject is rendered, as the target region.Type: GrantFiled: August 31, 2012Date of Patent: April 18, 2017Assignee: MORPHO, INC.Inventors: Yoshihito Hirai, Takeshi Miura
-
Publication number: 20150340766Abstract: An electromagnetic wave absorber and an electromagnetic wave anechoic room using the absorbers. The electromagnetic wave absorber has improved electromagnetic wave absorption characteristics at high frequencies in spite of having a hollow structure. The electromagnetic wave absorber includes a hollow shell with a bottom that is a rectangle. A part of a surface of the hollow shell and an outer face of a planar extension lie in planes that are not parallel to any side of the rectangle. At least the plane that is not parallel to any side of the rectangle is included in a surface of an electromagnetic wave absorption member.Type: ApplicationFiled: April 29, 2015Publication date: November 26, 2015Inventors: Toshifumi Saitoh, Yoshihito Hirai, Hiroshi Kurihara, Motonari Yanagawa
-
Patent number: 9129414Abstract: A device is provided that generates a composite image using a first image and a second image having different exposure conditions. The device includes an image input unit, a likelihood calculating unit, an exposure estimating unit, and a compositing unit. The image input unit inputs the first image and the second image. The likelihood calculating unit calculates a subject motion likelihood at each pixel based on a difference between the first image and the second image. The exposure estimating unit estimates an exposure transform function that conforms the exposure conditions of the first image and the second image to each other based on the subject motion likelihood. The compositing unit composites the first image and the second image by using the exposure transform function.Type: GrantFiled: October 14, 2011Date of Patent: September 8, 2015Assignee: Morpho, Inc.Inventors: Yoshihito Hirai, Takeshi Miura
-
Publication number: 20140212065Abstract: A device is provided that generates a composite image using a first image and a second image having different exposure conditions. The device includes an image input unit, a likelihood calculating unit, an exposure estimating unit, and a compositing unit. The image input unit inputs the first image and the second image. The likelihood calculating unit calculates a subject motion likelihood at each pixel based on a difference between the first image and the second image. The exposure estimating unit estimates an exposure transform function that conforms the exposure conditions of the first image and the second image to each other based on the subject motion likelihood. The compositing unit composites the first image and the second image by using the exposure transform function.Type: ApplicationFiled: October 14, 2011Publication date: July 31, 2014Applicant: MORPHO, INC.Inventors: Yoshihito Hirai, Takeshi Miura
-
Publication number: 20140079333Abstract: An image processing device that performs image processing on a composite image obtained by merging a first image and a second image having different exposure conditions. A data acquiring unit acquires the composite image and region data indicating a target region of the composite image. A image processing unit performs different image processes between the target region and a region other than the target region based on the region data. The images include a region on which a moving subject is rendered. In the region on which the moving subject is rendered, the composite image is generated by using a pixel value of one of the first image and the second image. The region data represents one or a plurality of regions generated based on the region of the composite image, on which the moving subject is rendered, as the target region.Type: ApplicationFiled: August 31, 2012Publication date: March 20, 2014Applicant: MORPHO, INC.Inventors: Yoshihito Hirai, Takeshi Miura
-
Patent number: 8038808Abstract: A flat soft magnetic material to be used for a noise-suppressing magnetic sheet, wherein the 50% particle size D50 (?m), coercive force Hc (A/m) and bulk density BD (Mg/m3) of the flat soft magnetic material satisfy the following formula (1). D50/(HC×BD)?1.Type: GrantFiled: April 20, 2009Date of Patent: October 18, 2011Assignee: TDK CorporationInventors: Atsuhito Matsukawa, Katsuhiko Wakayama, Hideharu Moru, Naoyoshi Sato, Yoshihito Hirai, Toshihisa Murayoshi
-
Patent number: 7799147Abstract: The performance index ??×Q of a magnetic core member, in which an Fe—Si—Cr alloy is used, is further improved. A flaky soft magnetic metal powder, which is used in a magnetic core member for an RFID antenna comprising the above flaky soft magnetic metal powder and a binder, wherein it is composed of an Fe—Si—Cr alloy having an Ms (saturation magnetization)/Hc (coercive force) of 0.8 to 1.5 (mT/Am?1) in an applied magnetic field of 398 kA/m. In the present invention, it is preferable that the flaky soft magnetic metal powder consists of 7 to 23 at % of Si, 15 at % or less of Cr (excluding 0), and the balance being Fe and inevitable impurities, and that it has a weight-average particle size D50 of 5 to 30 ?m and an average thickness of 0.1 to 1 ?m.Type: GrantFiled: March 15, 2007Date of Patent: September 21, 2010Assignee: TDK CorporationInventors: Atsuhito Matsukawa, Katsuhiko Wakayama, Yoshihito Hirai
-
Publication number: 20090267017Abstract: A flat soft magnetic material to be used for a noise-suppressing magnetic sheet, wherein the 50% particle size D50 (?m), coercive force Hc (A/m) and bulk density BD (Mg/m3) of the flat soft magnetic material satisfy the following formula (1). D50/(HC×BD)?1.Type: ApplicationFiled: April 20, 2009Publication date: October 29, 2009Applicant: TDK CorporationInventors: Atsuhito Matsukawa, Katsuhiko Wakayama, Hideharu Moro, Naoyoshi Sato, Yoshihito Hirai, Toshihisa Murayoshi
-
Publication number: 20070221297Abstract: The performance index ??×Q of a magnetic core member, in which an Fe—Si—Cr alloy is used, is further improved. A flaky soft magnetic metal powder, which is used in a magnetic core member for an RFID antenna comprising the above flaky soft magnetic metal powder and a binder, wherein it is composed of an Fe—Si—Cr alloy having an Ms (saturation magnetization)/Hc (coercive force) of 0.8 to 1.5 (mT/Am?1) in an applied magnetic field of 398 kA/m. In the present invention, it is preferable that the flaky soft magnetic metal powder consists of 7 to 23 at % of Si, 15 at % or less of Cr (excluding 0), and the balance being Fe and inevitable impurities, and that it has a weight-average particle size D50 of 5 to 30 ?m and an average thickness of 0.1 to 1 ?m.Type: ApplicationFiled: March 15, 2007Publication date: September 27, 2007Applicant: TDK CORPORATIONInventors: Atsuhito Matsukawa, Katsuhiko Wakayama, Yoshihito Hirai
-
Patent number: 5537116Abstract: An electromagnetic wave absorber is provided with a first dielectric material layer (90, 200, 220) having two surfaces, a wave reflection layer (91, 201, 221) laminated on the one surface of the first dielectric material layer, a first resistive layer (92, 202, 222) laminated on the other, opposite, surface of the first dielectric material layer (90, 200, 220), and a second dielectric material layer (95, 205, 225) disposed proximate to the first resistive layer (92, 202, 222) leaving an air space, (94, 204, 224) having a thickness sufficient to determine adjust absorption characteristics for polarized waves, between the second dielectric material layer and the first resistive layer.Type: GrantFiled: April 12, 1995Date of Patent: July 16, 1996Assignee: TDK CorporationInventors: Ken Ishino, Yasuo Hashimoto, Hiroshi Kurihara, Yoshihito Hirai
-
Patent number: 5502434Abstract: A separate type photoelectric smoke sensor having a light emitting section for emitting a light beam to a reflecting plate disposed at a certain distance from the light emitting section, a light receiving section for receiving reflected light from the reflecting plate, and a judgement section for outputting a sense signal if a received light output from the light receiving section is smaller than a threshold value previously set.Type: GrantFiled: May 21, 1993Date of Patent: March 26, 1996Assignee: Hockiki Kabushiki KaishaInventors: Osami Minowa, Junichi Narumiya, Tetsuya Nagashima, Yoshihito Hirai, Mariko Ishida
-
Patent number: 4914425Abstract: An ionization smoke detector of the present invention comprises an outer electrode having a plurality of smoke inlets formed on a side wall thereof, an outer cover and a partition wall having a plurality of smoke inlets disposed between the outer electrode and the outer cover to form a triple wall structure. The smoke inlets formed on the outer cover, the partition wall and the outer electrode are staggered from each other. Air stream hitting against the detector is attenuated by the triple wall structure and generally half of the air flow is allowed to pass between the outer cover and the outer electrode and between the partition wall and the outer electrode, flowing out of the detector and the remaining half of the air flow is led into the detector through the smoke inlets.Type: GrantFiled: December 16, 1988Date of Patent: April 3, 1990Assignee: Hochiki CorporationInventors: Yoshinori Kaminaka, Hiroshi Yashima, Satoru Koizumi, Tetsuya Nagashima, Yoshihito Hirai, Tetsuji Sato