Patents by Inventor Koichi Fukasawa

Koichi Fukasawa 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: 10429050
    Abstract: A light-emitting apparatus according to the present invention has a packaging substrate having a packaging area, a plurality of light-emitting elements packaged in the packaging area, and a sealing resin that seals the plurality of light-emitting elements. The plurality of light-emitting elements includes light-emitting elements packaged in a first packaging area including the center of the packaging area and light-emitting elements packaged in a second packaging area surrounding the perimeter of the first packaging area. The packaging density of the light-emitting elements packaged in the first packaging area is higher than the packaging density of the light-emitting elements packaged in the second packaging area.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: October 1, 2019
    Assignees: Citizen Electronics Co., Ltd., Citizen Holdings Co., Ltd.
    Inventor: Koichi Fukasawa
  • Patent number: 10361344
    Abstract: A light-emitting device in which the emission intensity of light-emitting elements is improved by making heat generated by light emission of the light-emitting elements be effectively released is provided. The light-emitting device includes a mounting substrate including a mounting region, light-emitting elements mounted on the mounting region, a sealing resin which contains a phosphor and integrally seals the light-emitting elements, and at least one heat transfer member which is arranged among the light-emitting elements on the mounting region, is embedded in the sealing resin, and has a higher thermal conductivity than the sealing resin.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: July 23, 2019
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Koichi Fukasawa, Nodoka Oyamada
  • Patent number: 10350901
    Abstract: An ink bottle comprises a container main body configured to contain ink that is to be supplied to an ink tank, an ink outlet forming portion provided on an end of the container main body and configured to include an ink outlet that causes the ink to be flowed out from the container main body, and a valve provided in the ink outlet forming portion and configured to seal the ink outlet in an openable and closable manner. The ink outlet is formed in an end face of the ink outlet forming portion. The end face is arranged to face an opposite side of the ink outlet forming portion that is opposite to a container main body side thereof. A first recess is formed in an outer side portion of the ink outlet on the end face to be recessed toward the container main body side.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: July 16, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tadahiro Mizutani, Koichi Toba, Ryoichi Tanaka, Taku Ishizawa, Manabu Akahane, Tadashi Watanabe, Noriyuki Fukasawa
  • Publication number: 20180128458
    Abstract: Provided is a light-emitting apparatus including a substrate, a plurality of light-emitting units each having a plurality of LED elements mounted on the substrate in a rectangular lattice pattern, wherein each of the light-emitting units has a rectangular light-emitting region, and a lens array including a plurality of lenses provided corresponding to the light-emitting units, respectively, the lens array being arranged on the plurality of light-emitting units, wherein the plurality of lenses is designed such that beams of emission light from the plurality of light-emitting units are collected and radiated so as to overlap with one another at a position distant from the substrate, and a part of the plurality of light-emitting units is arranged to be inclined with respect to a reference direction in a plane of the substrate by an angle different from that of other light-emitting units.
    Type: Application
    Filed: July 20, 2017
    Publication date: May 10, 2018
    Applicants: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventor: KOICHI FUKASAWA
  • Patent number: 9882106
    Abstract: A semiconductor device wherein the horizontal spreading of solder at the time of reflow is suppressed and a plurality of devices can be mounted close to each other on a substrate, and a light-emitting apparatus using such a semiconductor device as a light-emitting device are provided. A semiconductor device bonded to a substrate by solder includes a semiconductor layer, a plurality of device electrodes formed on a bottom surface of the semiconductor layer, and a plurality of auxiliary electrodes formed integrally with the device electrodes, respectively, wherein each of the auxiliary electrodes includes a groove portion formed in a bottom surface thereof, and a side face of the groove portion is slanted with respect to the bottom surface of the semiconductor layer so that the groove portion becomes narrower in width with increasing distance from a lower end of the auxiliary electrode and decreasing distance to an upper end thereof.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: January 30, 2018
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventor: Koichi Fukasawa
  • Publication number: 20170365754
    Abstract: A light-emitting device in which the emission intensity of light-emitting elements is improved by making heat generated by light emission of the light-emitting elements be effectively released is provided. The light-emitting device includes a mounting substrate including a mounting region, light-emitting elements mounted on the mounting region, a sealing resin which contains a phosphor and integrally seals the light-emitting elements, and at least one heat transfer member which is arranged among the light-emitting elements on the mounting region, is embedded in the sealing resin, and has a higher thermal conductivity than the sealing resin.
    Type: Application
    Filed: December 10, 2015
    Publication date: December 21, 2017
    Applicants: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Koichi Fukasawa, Nodoka Oyamada
  • Patent number: 9748208
    Abstract: A light-emitting device includes a substrate, and a plurality of light-emitting arrays or light-emitting groups arranged on the substrate. The light-emitting arrays or light-emitting groups include a plurality of LED elements connected in parallel with a pair of adjacent electrodes. The number of the LED elements constituting each of the light-emitting arrays or the light-emitting groups differs in each of the light-emitting arrays or the light-emitting groups. Of the plurality of light-emitting arrays arranged in parallel with each other or the light-emitting groups arranged in a line, the number of the LED elements of the light-emitting arrays or the light-emitting groups positioned inside the substrate is more than the number of the LED elements of the light-emitting arrays or the light-emitting groups positioned outside the substrate.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: August 29, 2017
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventor: Koichi Fukasawa
  • Publication number: 20170133567
    Abstract: A semiconductor device wherein the horizontal spreading of solder at the time of reflow is suppressed and a plurality of devices can be mounted close to each other on a substrate, and a light-emitting apparatus using such a semiconductor device as a light-emitting device are provided. A semiconductor device bonded to a substrate by solder includes a semiconductor layer, a plurality of device electrodes formed on a bottom surface of the semiconductor layer, and a plurality of auxiliary electrodes formed integrally with the device electrodes, respectively, wherein each of the auxiliary electrodes includes a groove portion formed in a bottom surface thereof, and a side face of the groove portion is slanted with respect to the bottom surface of the semiconductor layer so that the groove portion becomes narrower in width with increasing distance from a lower end of the auxiliary electrode and decreasing distance to an upper end thereof.
    Type: Application
    Filed: July 28, 2016
    Publication date: May 11, 2017
    Applicants: CITIZEN ELECTRONICS CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventor: Koichi Fukasawa
  • Publication number: 20170038051
    Abstract: A light-emitting apparatus according to the present invention has a packaging substrate having a packaging area, a plurality of light-emitting elements packaged in the packaging area, and a sealing resin that seals the plurality of light-emitting elements. The plurality of light-emitting elements includes light-emitting elements packaged in a first packaging area including the center of the packaging area and light-emitting elements packaged in a second packaging area surrounding the perimeter of the first packaging area. The packaging density of the light-emitting elements packaged in the first packaging area is higher than the packaging density of the light-emitting elements packaged in the second packaging area.
    Type: Application
    Filed: August 2, 2016
    Publication date: February 9, 2017
    Applicants: CITIZEN ELECTRONICS CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventor: Koichi Fukasawa
  • Patent number: 9220142
    Abstract: A light-emitting device includes a mounting area that includes a first end and a second end opposite to the first end, a first electrode group disposed adjacent to the first end of the mounting area, a second electrode group disposed adjacent to the second end of the mounting area, a plurality of files each in that a plurality of light-emitting elements are arranged in the mounting area to extend from a vicinity of the first end of the light-emitting area to a vicinity of the second end of the mounting area and electrically connected in series with each other of the light-emitting elements in each file. Light-emitting elements included in two or more files can be a light-emitting block to be lighted together through electrodes of the first electrode group and the second electrode group.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: December 22, 2015
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventors: Takakazu Yano, Masato Asahina, Arata Shimozawa, Koichi Fukasawa
  • Publication number: 20150155460
    Abstract: A light-emitting apparatus that can produce white light that appears crisper by controlling light-emitting devices of different colors using a simplified wiring configuration is provided. The light-emitting apparatus includes a plurality of blue-emitting devices as blue-emitting semiconductor light-emitting devices, a plurality of green-emitting devices as green-emitting semiconductor light-emitting devices, and a sealing resin through which is dispersed a red phosphor that emits red light by absorbing blue light from the plurality of blue-emitting devices and green light from the plurality of green-emitting devices as pump light, the sealing resin covering the plurality of blue-emitting devices and the plurality of green-emitting devices, wherein the plurality of blue-emitting devices and the plurality of green-emitting devices are connected in series with each other.
    Type: Application
    Filed: November 25, 2014
    Publication date: June 4, 2015
    Applicants: CITIZEN ELECTRONICS CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventor: Koichi Fukasawa
  • Patent number: 8766313
    Abstract: A mounting board including a pair of patterned electrodes, a lower surface and an upper surface opposed thereto on which a substrate of an electronic component is to be mounted, a pass-through hole penetrating through the upper surface and the lower surface, and a peripheral side surface that defines the pass-through hole. The pass-through hole includes a plurality of penetrating grooves that are cut into the mounting board and penetrate through the upper and lower surfaces. The plurality of penetrating grooves electrically split the pair of patterned electrodes. The pair of patterned electrodes is partly positioned inside the peripheral side surface, and a connection portion connecting the at least one pair of patterned electrodes and at least one pair of patterned electrodes provided on the upper surface of the substrate of the electronic component is to be disposed inside the peripheral side surface that defines the pass-through hole.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: July 1, 2014
    Assignees: Citizen Electronics Co., Ltd., Citizen Holdings Co., Ltd., Panasonic Corporation
    Inventors: Kohsuke Kashitani, Koichi Fukasawa, Jun Takashima, Katsuyuki Kiyozumi
  • Patent number: 8596820
    Abstract: The present invention is an LED unit having a thermal-release structure including a base having high thermal conductivity, a circuit board which includes a wiring pattern and is provided on the base, at least one LED element which is electrically connected to the wiring pattern and disposed on the base, and a light-transmitting resinous body provided to cover above the base to seal the LED element.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: December 3, 2013
    Assignee: Citizen Electronics Co., Ltd.
    Inventors: Koichi Fukasawa, Sadato Imai, Masayoshi Kanamori
  • Patent number: 8348457
    Abstract: In a lighting device, a first LED is formed by sealing a blue LED element by a first resin, the first resin having a first phosphor included in the first resin so as to raise a correlation color temperature of an emitted light color; and a second LED is formed by sealing a blue LED element by a second resin, the second resin having a second phosphor included in the second resin so as to lower a correlation color temperature of an emitted light color. The lighting device emits light from white light of a color having a first correlation color temperature to white light of a color having a second correlation color temperature, and the first correlation color temperature is higher than the second correlation color temperature. Consequently, various tones of white light can be more easily adjusted and controlled over a long period.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: January 8, 2013
    Assignee: Citizen Electronics Co., Ltd.
    Inventors: Norikazu Kadotani, Koichi Fukasawa
  • Publication number: 20120313135
    Abstract: A mounting board including a pair of patterned electrodes, a lower surface and an upper surface opposed thereto on which a substrate of an electronic component is to be mounted, a pass-through hole penetrating through the upper surface and the lower surface, and a peripheral side surface that defines the pass-through hole. The pass-through hole includes a plurality of penetrating grooves that are cut into the mounting board and penetrate through the upper and lower surfaces. The plurality of penetrating grooves electrically split the pair of patterned electrodes. The pair of patterned electrodes is partly positioned inside the peripheral side surface, and a connection portion connecting the at least one pair of patterned electrodes and at least one pair of patterned electrodes provided on the upper surface of the substrate of the electronic component is to be disposed inside the peripheral side surface that defines the pass-through hole.
    Type: Application
    Filed: February 23, 2011
    Publication date: December 13, 2012
    Applicants: Citizen Electronics Co., Ltd., Panasonic Corporation, Citizen Holdings Co., Ltd.
    Inventors: Kohsuke Kashitani, Koichi Fukasawa, Jun Takashima, Katsuyuki Kiyozumi
  • Patent number: 8258522
    Abstract: An LED apparatus includes a base having thermal conductivity, an insulative substrate provided on one surface of the base and including electrodes provided on a surface of the substrate, at least one base-mounting area that is an exposed part of the base, exposed within a pass-through hole provided in the substrate, a plurality of LED elements mounted on the base in the base-mounting area and some of the LED elements in a unit electrically connected to the electrodes in series, a plurality of the units are electrically connected in parallel, and a frame disposed to surround the base-mounting area and configured to form a light-emitting area.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: September 4, 2012
    Assignees: Citizen Electronics Co., Ltd., Citizen Holdings Co., Ltd.
    Inventors: Norikazu Kadotani, Koichi Fukasawa, Sadato Imai
  • Patent number: 8154037
    Abstract: An LED light source apparatus comprises a circular base having thermal conductivity, an insulative substrate concentric with the base and including a pass-through hole provided to pass through an upper surface and a lower surface of the substrate, at least one mounting area formed having a central portion of an upper surface of the base exposed from the pass-through hole of the substrate, and a plurality of LED elements mounted on the mounting area and electrically connected to electrodes provided on the upper surface of the substrate, the pass-through hole being formed in a circular shape concentric with the base and the substrate.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: April 10, 2012
    Assignees: Citizen Electronics Co., Ltd., Citizen Holdings Co., Ltd.
    Inventors: Norikazu Kadotani, Koichi Fukasawa, Sadato Imai
  • Publication number: 20110316009
    Abstract: A light-emitting device includes a substrate, and a plurality of light-emitting arrays or light-emitting groups arranged on the substrate. The light-emitting arrays or light-emitting groups include a plurality of LED elements connected in parallel with a pair of adjacent electrodes. The number of the LED elements constituting each of the light-emitting arrays or the light-emitting groups differs in each of the light-emitting arrays or the light-emitting groups. Of the plurality of light-emitting arrays arranged in parallel with each other or the light-emitting groups arranged in a line, the number of the LED elements of the light-emitting arrays or the light-emitting groups positioned inside the substrate is more than the number of the LED elements of the light-emitting arrays or the light-emitting groups positioned outside the substrate.
    Type: Application
    Filed: June 23, 2011
    Publication date: December 29, 2011
    Applicants: CITIZEN HOLDINGS CO., LTD., CITIZEN ELECTRONICS CO., LTD.
    Inventor: Koichi FUKASAWA
  • Patent number: RE46295
    Abstract: An LED apparatus includes a base having thermal conductivity, an insulative substrate provided on one surface of the base and including electrodes provided on a surface of the substrate, at least one base-mounting area that is an exposed part of the base, exposed within a pass-through hole provided in the substrate, a plurality of LED elements mounted on the base in the base-mounting area and some of the LED elements in a unit electrically connected to the electrodes in series, a plurality of the units are electrically connected in parallel, and a frame disposed to surround the base-mounting area and configured to form a light-emitting area.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: January 31, 2017
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventors: Norikazu Kadotani, Koichi Fukasawa, Sadato Imai
  • Patent number: RE47530
    Abstract: An LED apparatus includes a base having thermal conductivity, an insulative substrate provided on one surface of the base and including electrodes provided on a surface of the substrate, at least one base-mounting area that is an exposed part of the base, exposed within a pass-through hole provided in the substrate, a plurality of LED elements mounted on the base in the base-mounting area and some of the LED elements in a unit electrically connected to the electrodes in series, a plurality of the units are electrically connected in parallel, and a frame disposed to surround the base-mounting area and configured to form a light-emitting area.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: July 23, 2019
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Norikazu Kadotani, Koichi Fukasawa, Sadato Imai