Patents by Inventor Kiminori Mizuuchi

Kiminori Mizuuchi 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: 10816461
    Abstract: A gas sensor includes: a gas detection unit including a light source and a detector; and a gas passage including a first end, a second end and a hollow part. The hollow part has a shape in which a cross-sectional area of a flow passage grows smaller. The gas passage includes: a member that divides the hollow part into at least a first area and a second area; a gas inflow port; and a gas outflow port. The gas flows from the gas inflow port into the hollow part, flows in the first area to arrive at the gas detection unit, and the gas located in the gas detection unit flows in the second area and flows out from the gas outflow port.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: October 27, 2020
    Assignee: PHC HOLDINGS CORPORATION
    Inventors: Kiminori Mizuuchi, Masaki Yamamoto, Akira Sakaguchi, Hidenori Watanabe, Tomoyoshi Tokumaru, Tsugumasa Hitomi
  • Publication number: 20200141914
    Abstract: A gas sensor includes: a light source that emits a first light of a predetermined wavelength toward a gas subject to detection; a density detector that receives the first light and detects a density of the gas subject to detection based on absorption of the first light by the gas subject to detection; a translucent member provided between the light source and the density detector; a temperature adjustment unit that varies a temperature of the translucent member; and a humidity detection unit that detects a humidity of the gas subject to detection based on variation in an amount of the first light received in the density detector and by using a temperature of the translucent member and an ambient temperature of the gas sensor.
    Type: Application
    Filed: December 30, 2019
    Publication date: May 7, 2020
    Inventors: Kiminori MIZUUCHI, Masaki YAMAMOTO, Atsunobu FUWA
  • Publication number: 20190049370
    Abstract: A gas sensor includes: a gas detection unit including a light source and a detector; and a gas passage including a first end, a second end and a hollow part. The hollow part has a shape in which a cross-sectional area of a flow passage grows smaller. The gas passage includes: a member that divides the hollow part into at least a first area and a second area; a gas inflow port; and a gas outflow port. The gas flows from the gas inflow port into the hollow part, flows in the first area to arrive at the gas detection unit, and the gas located in the gas detection unit flows in the second area and flows out from the gas outflow port.
    Type: Application
    Filed: October 15, 2018
    Publication date: February 14, 2019
    Inventors: Kiminori MIZUUCHI, Masaki YAMAMOTO, Akira SAKAGUCHI, Hidenori WATANABE, Tomoyoshi TOKUMARU, Tsugumasa HITOMI
  • Patent number: 9774771
    Abstract: A preparation includes an image sensor, a package, and a transparent plate. The image sensor has an imaging area on a front surface. The package is electrically connected to the image sensor. The transparent plate opposes the front surface of the image sensor with a mounting medium interposed therebetween. On the surface of the transparent plate, first and second grooves are formed. The image sensor is disposed between the first and second grooves.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: September 26, 2017
    Assignee: PANASONIC CORPORATION
    Inventors: Hideto Motomura, Hiroyuki Mori, Hiroshi Matsumoto, Katsuya Watanabe, Kiminori Mizuuchi, Naoki Matsubara
  • Publication number: 20160344908
    Abstract: A preparation includes an image sensor, a package, and a transparent plate. The image sensor has an imaging area on a front surface. The package is electrically connected to the image sensor. The transparent plate opposes the front surface of the image sensor with a mounting medium interposed therebetween. On the surface of the transparent plate, first and second grooves are formed. The image sensor is disposed between the first and second grooves.
    Type: Application
    Filed: August 3, 2016
    Publication date: November 24, 2016
    Inventors: HIDETO MOTOMURA, HIROYUKI MORI, HIROSHI MATSUMOTO, KATSUYA WATANABE, KIMINORI MIZUUCHI, NAOKI MATSUBARA
  • Patent number: 8993919
    Abstract: The present application discloses a laser source for emitting laser light onto a work-piece. The laser source includes a generator configured to generate the laser light, and an adjuster configured to adjust an output of the laser light. The adjuster situated between the generator and the work-piece reduces output density of the laser light on the work-piece.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: March 31, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Koichi Kusukame, Shinichi Kadowaki, Hiroyuki Furuya, Kiminori Mizuuchi, Susumu Takagi
  • Patent number: 8767783
    Abstract: A light source device is provided with a coherent light source for emitting the coherent light, and a pattern changer for changing an interference pattern of the coherent light on a surface of the illumination object. The pattern changer includes a photorefractive crystal which is arranged between the coherent light source and the illumination object and on an optical path of the coherent light and exhibits a photorefractive effect, and a changer for changing at least one of a light intensity distribution, a polarization direction, a wavelength and an intensity of coherent light incident on the photorefractive crystal. The illumination object is illuminated with the coherent light.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: July 1, 2014
    Assignee: Panasonic Corporation
    Inventors: Koichi Kusukame, Tetsuro Mizushima, Kazuhisa Yamamoto, Hiroyuki Furuya, Shinichi Kadowaki, Kiminori Mizuuchi
  • Patent number: 8571076
    Abstract: A laser light source includes a fundamental laser generator that generates a fundamental laser light, a wavelength conversion element that is made of a ferroelectric crystal with a periodically poled structure and converts the fundamental laser light to a laser light having a different wavelength, a holding member that holds at least a part of an element surface of the wavelength conversion element that crosses a polarization direction of the periodically poled structure, and an insulation layer that is provided between the holding member and the element surface. Electric resistivity of the insulation layer is 1×108 ?·cm or higher.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: October 29, 2013
    Assignee: Panasonic Corporation
    Inventors: Koichi Kusukame, Hiroyuki Furuya, Kiminori Mizuuchi, Tomoya Sugita, Akihiro Morikawa, Nobuyuki Horikawa, Kazuhisa Yamamoto, Shinichi Kadowaki
  • Publication number: 20130235895
    Abstract: A laser light source (100) according to the present invention includes a laser resonator (150) including a fiber (107) containing a laser active medium and a fiber grating (105, 160) coupled to each of two ends of the fiber (107); an pumping laser light source (104) for emitting pump light into the laser resonator (150); a driving current supply circuit (102) for supplying a pulse-like driving current to the pumping laser light source (104); and a wavelength conversion element (101) for converting a wavelength of laser light which is output from the laser resonator. The laser resonator (150) generates laser light including a principal pulse and a plurality of superimposing pulses which are superimposed on the principal pulse, in accordance with incidence of the pump light; and converted light having the wavelength of each of the principal pulse and the superimposing pulses shortened is generated by the wavelength conversion element (101).
    Type: Application
    Filed: November 17, 2010
    Publication date: September 12, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Kiminori Mizuuchi, Susumu Takagi
  • Patent number: 8451398
    Abstract: A light source device with high use efficiency is provided. By using a laser light source of a single polarization, uniformization of light quantity and uniformization of polarization are simultaneously realized, in a two-dimensional planar illumination utilizing reflection and collimating. Thus, it is possible to realize the two-dimensional planar illumination with polarization aligned, and therefore the use efficiency of light can be significantly improved, when combined with switching utilizing the polarization of a liquid crystal panel, etc.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: May 28, 2013
    Assignee: Panasonic Corporation
    Inventors: Kiminori Mizuuchi, Kazuhisa Yamamoto
  • Publication number: 20130032581
    Abstract: The present application discloses a laser source for emitting laser light onto a work-piece. The laser source includes a generator configured to generate the laser light, and an adjuster configured to adjust an output of the laser light. The adjuster situated between the generator and the work-piece reduces output density of the laser light on the work-piece.
    Type: Application
    Filed: April 13, 2011
    Publication date: February 7, 2013
    Inventors: Koichi Kusukame, Shinichi Kadowaki, Hiroyuki Furuya, Kiminori Mizuuchi, Susumu Takagi
  • Patent number: 8350789
    Abstract: A 2D image display apparatus using a laser light source. By controlling the timing of a scan by a beam scan portion in response to the characteristic of a laser light source and by setting a light emitting time of the laser light source to an integral multiple of a scan cycle of the beam scan portion, it is possible to illuminate a spatial light modulator homogeneously with a laser beam. It is thus possible to display an image at high accuracy without causing a bright line, irregularities in brightness, and contrast deterioration.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: January 8, 2013
    Assignee: Panasonic Corporation
    Inventors: Hiroyuki Furuya, Kiminori Mizuuchi, Toshifumi Yokoyama, Tatsuo Itoh, Akira Kurozuka, Kazuhisa Yamamoto
  • Patent number: 8317333
    Abstract: A 2-dimensional beam scan unit reflects emission beams from a red laser light source, a green laser light source and a blue laser light source and scans in a 2-dimensional direction. Diffusion plates diffuse the respective light beams scanned in the 2-dimensional direction to introduce them to corresponding spatial light modulation elements. The respective spatial light modulation elements modulate the respective lights in accordance with video signals of the respective colors. A dichroic prism multiplexes the lights of the three colors after the modulation and introduces the multiplexed lights to a projection lens so that a color image is displayed on a screen. Since the 2-dimensional light emitted from the beam scan unit is diffused to illuminate the spatial light modulation element, it is possible to change the optical axis of the beam emerging from the light diffusion member for irradiating the spatial light modulation element moment by moment, thereby effectively suppressing speckle noise.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: November 27, 2012
    Assignee: Panasonic Corporation
    Inventors: Kenichi Kasazumi, Yasuo Kitaoka, Kiminori Mizuuchi, Kazuhisa Yamamoto
  • Patent number: 8294979
    Abstract: A wavelength conversion device includes a laser light source that emits a fundamental wave; a wavelength conversion element that converts the fundamental wave into a second harmonic wave; and an optical system including a wavelength selective mirror that reflects the fundamental wave transmitted through the wavelength conversion element without being converted into the second harmonic wave, while transmitting therethrough the second harmonic wave generated by wavelength conversion, wherein the optical system makes the fundamental wave transmitted through the wavelength conversion element without being converted into the second harmonic wave enter the wavelength conversion element again to be subjected to wavelength conversion once or more than once, while being focused by the wavelength selective mirror, and the conversion efficiency in at least one of the second stage and stages subsequent to the second stage is higher than the conversion efficiency in the first stage, where the conversion efficiency in each
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: October 23, 2012
    Assignee: Panasonic Corporation
    Inventors: Shinichi Shikii, Kiminori Mizuuchi, Tetsuro Mizushima, Kazuhisa Yamamoto
  • Patent number: 8287131
    Abstract: A wavelength conversion laser is provided with a solid-state laser having a cavity, and a wavelength converting element arranged within the cavity. The solid-state laser includes two or more types of laser crystals and oscillates solid-state laser light of multiple wavelengths. The wavelength converting element converts the solid-state laser light of multiple wavelengths into light of second harmonic waves and sum-frequency wave of multiple wavelengths and simultaneously generates the second harmonic waves and sum-frequency wave of multiple wavelengths. The wavelength conversion laser outputs converted wavelength light having a broad spectral width and low coherency, thereby enabling it to carry out highly efficient and stable high-output oscillation.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: October 16, 2012
    Assignee: Panasonic Corporation
    Inventors: Tetsuro Mizushima, Toshifumi Yokoyama, Tatsuo Itoh, Kenji Nakayama, Kiminori Mizuuchi, Kazuhisa Yamamoto
  • Patent number: 8270440
    Abstract: A laser light source is provided with a pump light source (1) comprising a semiconductor laser, a solid laser medium (2) which is excited by the semiconductor laser, and multi-mode means for changing at least either a longitudinal mode or a transverse mode of laser oscillation of the solid laser. The oscillation light of the laser medium excited by the light outputted from the pump light source is changed by the multi-mode means into output light (5) having a plurality of oscillation spectra and is outputted, thereby a small, high power, and highly efficient low coherent light source can be realized, and a laser light source having reduced speckle noises can be provided.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: September 18, 2012
    Assignee: Panasonic Corporation
    Inventors: Kiminori Mizuuchi, Kazuhisa Yamamoto
  • Patent number: 8254415
    Abstract: A GaN-based semiconductor laser (1) emits first laser light of a single polarization and having a first wavelength. An optical resonator (30) includes a solid-state laser medium which is excited by incidence of the laser light and which oscillates second laser light having a second wavelength different from the first wavelength. A polarization switch (6) switches over at least one of polarization directions of the first laser light and the second laser light to thereby change the wavelength of laser light to be emitted from the optical resonator (30) or the intensity ratio between a plurality of laser light to be emitted from the optical resonator (30). With the above arrangement, a plurality of laser light can be used effectively.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: August 28, 2012
    Assignee: Panasonic Corporation
    Inventors: Kiminori Mizuuchi, Kazuhisa Yamamoto, Tetsuro Mizushima
  • Patent number: 8228461
    Abstract: A compact liquid crystal display device is provided by connecting a plurality of liquid crystal display panel units each provided with a light guiding plate unit on a back side with a connection portion and supplying a laser light source via the connection portion. The compact liquid crystal display device includes a plurality of display portions formed of liquid crystal display panel units and light guiding plate units disposed in intimate contact with the back sides of the liquid crystal display panel units, a connection portion connecting a plurality of the display portions, and a laser light source. By supplying a laser beam emitted from the laser light source to the light guiding plate units via the connection portion, the display surfaces of the liquid crystal display panel units are illuminated by the laser beam.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: July 24, 2012
    Assignee: Panasonic Corporation
    Inventors: Kiminori Mizuuchi, Kazuhisa Yamamoto
  • Publication number: 20120183006
    Abstract: After forming domain inverted layers 3 in an LiTaO3 substrate 1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer 8 is formed, where an increase in refractive index generated during high-temperature annealing is lowered, thereby providing a stable optical wavelength conversion element. Thus, the phase-matched wavelength becomes constant, and variation in harmonic wave output is eliminated. Consequently, with respect to an optical wavelength conversion element utilizing a non-linear optical effect, a highly reliable element is provided.
    Type: Application
    Filed: August 6, 2007
    Publication date: July 19, 2012
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuhisa YAMAMOTO, Kiminori Mizuuchi, Yasuo Kitaoka, Makoto Kato
  • Publication number: 20120153190
    Abstract: Provided is a method for manufacturing a wavelength conversion element 3 for converting a fundamental wave into a second harmonic wave, the method including the aging step (step 4) of irradiating a nonlinear optical crystal substrate 1 with a first light beam 4 having the same wavelength as the fundamental wave until the amount of variation per unit time in the phase matching temperature becomes a predetermined reference value or smaller while keeping the temperature of the nonlinear optical crystal substrate 1 at around the phase matching temperature after forming a periodical polarization-reversed structure in the nonlinear optical crystal substrate 1 (step 2).
    Type: Application
    Filed: August 6, 2010
    Publication date: June 21, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Akifumi Aono, Kiminori Mizuuchi