Patents by Inventor Yoshiaki Watanabe

Yoshiaki Watanabe 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: 10578819
    Abstract: A surface light emitting semiconductor laser element, comprises a substrate, a lower reflector including a semiconductor multi-layer disposed on the substrate, an active layer disposed on the lower reflector, an upper reflector including a semiconductor multi-layer disposed on the active layer, a compound semiconductor layer having a first opening for exposing the upper reflector and extending over the upper reflector, and a metal film having a second opening for exposing the upper reflector disposed inside of the first opening and extending over the compound semiconductor layer, wherein the metal film and the compound semiconductor layer constitute a complex refractive index distribution structure where a complex refractive index is changed from the center of the second opening towards the outside. A method of emitting laser light in a single-peak transverse mode is also provided.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: March 3, 2020
    Assignee: Sony Corporation
    Inventors: Yoshiaki Watanabe, Hironobu Narui, Yuichi Kuromizu, Yoshinori Yamauchi, Yoshiyuki Tanaka
  • Patent number: 10490692
    Abstract: There is provided a semiconductor light-emitting device including a light-emitting edge, an opposite edge, and a first conductive layer that includes a current narrowing structure having a longitudinal direction along one direction from the opposite edge to the light-emitting edge. An active layer is between the first conductive layer and a second conductive layer which respectively come into contact with the first conductive layer and the second conductive layer. The current narrowing structure includes a spread area such that a width of the spread area in a direction along a surface of the first conductive layer widens from a predetermined position toward the light-emitting edge in the one direction. The first electrode layer includes an electrode area on at least the spread area such that a width thereof in the direction along the surface of the first conductive layer becomes smaller than the width of the spread area.
    Type: Grant
    Filed: December 25, 2015
    Date of Patent: November 26, 2019
    Assignee: SONY CORPORATION
    Inventors: Yoshiaki Watanabe, Takayuki Kawasumi
  • Patent number: 10419639
    Abstract: An image reading apparatus includes a line sensor to read an image of a document in a read area, a storage unit to store first reference data previously acquired by reading a first white reference member opposite to light receiving elements of the line sensor, a second white reference member of which a length is shorter than a length of the line sensor in the main scanning direction, an acquiring unit to acquire reference data read by the line sensor with the second white reference member and the line sensor opposed to each other, a correction unit to correct an output of the light receiving elements not opposite to the second white reference member, based on the stored first reference data and second reference data acquired by the light receiving elements opposite to the second white reference member among the reference data acquired by the acquiring unit.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: September 17, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiaki Watanabe, Tsuyoshi Yamauchi, Shigeru Kawasaki
  • Patent number: 10185482
    Abstract: In the case where entertainment information is acquired as information to be displayed on an instrument panel display 1 when an object indicating driving information is displayed on the instrument panel display 1, an object indicating the entertainment information is moved from the outside of a screen of the instrument panel display 1 to the inside of the screen, and the object indicating the driving information and the object indicating the entertainment information are displayed such that all or part of the object indicating the entertainment information passes behind the object indicating the driving information during the movement.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: January 22, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshihiko Mori, Takehisa Mizuguchi, Yoshiaki Watanabe, Yasuaki Takimoto, Hiroyuki Yokota
  • Publication number: 20180366612
    Abstract: [Object] To provide a light-emitting device and a display apparatus that high-output can be achieved without enlarging a light confinement width, i.e., without enlarging a beam spot size. [Solving Means] A light-emitting device includes a first electrode layer, a first conduction type layer, a second conduction type layer, an active layer, and second electrode layer. The first conduction type layer includes a current injection region formed by the first electrode layer and a current non-injection region. A waveguide structure included in the first conduction type layer, the active layer, and the second conduction type layer includes a first region and a second region. The first region has a first waveguide that is the current injection region and the current non-injection region and has a first refractive index difference.
    Type: Application
    Filed: September 30, 2016
    Publication date: December 20, 2018
    Inventors: KENTARO FUJII, TOMOKI ONO, YOSHIAKI WATANABE
  • Publication number: 20180341076
    Abstract: A surface light emitting semiconductor laser element, comprises a substrate, a lower reflector including a semiconductor multi-layer disposed on the substrate, an active layer disposed on the lower reflector, an upper reflector including a semiconductor multi-layer disposed on the active layer, a compound semiconductor layer having a first opening for exposing the upper reflector and extending over the upper reflector, and a metal film having a second opening for exposing the upper reflector disposed inside of the first opening and extending over the compound semiconductor layer, wherein the metal film and the compound semiconductor layer constitute a complex refractive index distribution structure where a complex refractive index is changed from the center of the second opening towards the outside. A method of emitting laser light in a single-peak transverse mode is also provided.
    Type: Application
    Filed: June 19, 2018
    Publication date: November 29, 2018
    Inventors: Yoshiaki Watanabe, Hironobu Narui, Yuichi Kuromizu, Yoshinori Yamauchi, Yoshiyuki Tanaka
  • Patent number: 10025051
    Abstract: A surface light emitting semiconductor laser element, comprises a substrate, a lower reflector including a semiconductor multi-layer disposed on the substrate, an active layer disposed on the lower reflector, an upper reflector including a semiconductor multi-layer disposed on the active layer, a compound semiconductor layer having a first opening for exposing the upper reflector and extending over the upper reflector, and a metal film having a second opening for exposing the upper reflector disposed inside of the first opening and extending over the compound semiconductor layer, wherein the metal film and the compound semiconductor layer constitute a complex refractive index distribution structure where a complex refractive index is changed from the center of the second opening towards the outside. A method of emitting laser light in a single-peak transverse mode is also provided.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: July 17, 2018
    Assignee: Sony Corporation
    Inventors: Yoshiaki Watanabe, Hironobu Narui, Yuichi Kuromizu, Yoshinori Yamauchi, Yoshiyuki Tanaka
  • Patent number: 9983375
    Abstract: A surface light emitting semiconductor laser element, comprises a substrate, a lower reflector including a semiconductor multi-layer disposed on the substrate, an active layer disposed on the lower reflector, an upper reflector including a semiconductor multi-layer disposed on the active layer, a compound semiconductor layer having a first opening for exposing the upper reflector and extending over the upper reflector, and a metal film having a second opening for exposing the upper reflector disposed inside of the first opening and extending over the compound semiconductor layer, wherein the metal film and the compound semiconductor layer constitute a complex refractive index distribution structure where a complex refractive index is changed from the center of the second opening towards the outside. A method of emitting laser light in a single-peak transverse mode is also provided.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: May 29, 2018
    Assignee: Sony Corporation
    Inventors: Yoshiaki Watanabe, Hironobu Narui, Yuichi Kuromizu, Yoshinori Yamauchi, Yoshiyuki Tanaka
  • Patent number: 9966500
    Abstract: A semiconductor optical device includes: a ridge stripe structure portion 20 in which a first compound semiconductor layer 31, an active layer 32, and a second compound semiconductor layer 32 are stacked and which has a first end surface 21 which emits light and a second end surface 22 opposite to the first end surface 21; and a current regulation region 41 provided to be adjacent to at least one of ridge stripe adjacent portions 40 positioned at both sides of the ridge stripe structure portion 20, at the second end surface side, and to be away from the ridge stripe structure portion 20. A bottom surface of the current regulation region 41 is under the active layer 33, and a top surface of the ridge stripe adjacent portion 40 excluding the current regulation region 41 is above the active layer 33.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: May 8, 2018
    Assignee: SONY CORPORATION
    Inventors: Yoshiaki Watanabe, Takayuki Kawasumi
  • Publication number: 20180059344
    Abstract: A surface light emitting semiconductor laser element, comprises a substrate, a lower reflector including a semiconductor multi-layer disposed on the substrate, an active layer disposed on the lower reflector, an upper reflector including a semiconductor multi-layer disposed on the active layer, a compound semiconductor layer having a first opening for exposing the upper reflector and extending over the upper reflector, and a metal film having a second opening for exposing the upper reflector disposed inside of the first opening and extending over the compound semiconductor layer, wherein the metal film and the compound semiconductor layer constitute a complex refractive index distribution structure where a complex refractive index is changed from the center of the second opening towards the outside. A method of emitting laser light in a single-peak transverse mode is also provided.
    Type: Application
    Filed: November 3, 2017
    Publication date: March 1, 2018
    Inventors: Yoshiaki Watanabe, Hironobu Narui, Yuichi Kuromizu, Yoshinori Yamauchi, Yoshiyuki Tanaka
  • Publication number: 20180033910
    Abstract: [Solving Means] A first conductive layer of a semiconductor light-emitting device including a light-emitting edge and an opposite edge includes a current narrowing structure configured such that a current injection area is narrowed. A longitudinal direction of the current narrowing structure is provided along one direction from the opposite edge to the light-emitting edge. An active layer is provided between the first conductive layer and a second conductive layer. A first electrode layer and a second electrode layer respectively come into contact with the first conductive layer and the second conductive layer. The current narrowing structure includes a spread area. The spread area is provided such that a width of the current narrowing structure in a direction along a surface of the first conductive layer widens from a predetermined position toward the light-emitting edge in the one direction. The first electrode layer includes an electrode area.
    Type: Application
    Filed: December 25, 2015
    Publication date: February 1, 2018
    Applicant: SONY CORPORATION
    Inventors: YOSHIAKI WATANABE, TAKAYUKI KAWASUMI
  • Publication number: 20180020117
    Abstract: First reference data acquired by reading a first white reference member placed in a read area of a document platen by a line sensor having a plurality of light receiving elements is stored in a storage unit. Second reference data acquired by reading a second white reference member by a capturing unit is compared with the first reference data stored in the storage unit. Output values from the plurality of light receiving elements are subjected to shading correction based on the comparison result.
    Type: Application
    Filed: July 10, 2017
    Publication date: January 18, 2018
    Inventors: Yoshiaki Watanabe, Tsuyoshi Yamauchi, Shigeru Kawasaki
  • Publication number: 20170364923
    Abstract: To provide a safety management system capable of appropriately delivering, to a user, a variety of safety information necessary for a product to be safely used and preserved, etc. [Solution] An address acquisition unit of a communication terminal acquires a web address corresponding to a product by optically reading the recognition code of the product. An information processing unit of the communication terminal accesses an information provision server by using the web address and acquires safety information. An information storage unit of the information provision server stores multiple kinds of safety information about each product, the information provision server appropriately selecting, on the basis of a prescribed selection criterion, any safety information from among the plurality of safety information pertaining to the product, and transmitting the selected safety information to the communication terminal.
    Type: Application
    Filed: February 24, 2015
    Publication date: December 21, 2017
    Inventors: Yoshiaki WATANABE, Kinyo WATANABE
  • Publication number: 20170288090
    Abstract: [Solving Means] A semiconductor light emitting element includes a first conductive layer, a second conductive layer, and an active layer provided between the first conductive layer and the second conductive layer. The first conductive layer has a current constriction structure, a current injection region being constricted in the current constriction structure. The active layer includes a plurality of quantum well layers, a first light emission wavelength being in a wavelength range of an intensity peak of an entire light emission spectrum, the first light emission wavelength corresponding to a light emission recombination level energy gap of a first quantum well layer of the plurality of quantum well layers, the first quantum well layer being provided at a position closest to the current constriction structure.
    Type: Application
    Filed: October 1, 2015
    Publication date: October 5, 2017
    Inventors: YOSHIAKI WATANABE, TAKAYUKI KAWASUMI
  • Publication number: 20170047480
    Abstract: A semiconductor optical device includes: a ridge stripe structure portion 20 in which a first compound semiconductor layer 31, an active layer 32, and a second compound semiconductor layer 32 are stacked and which has a first end surface 21 which emits light and a second end surface 22 opposite to the first end surface 21; and a current regulation region 41 provided to be adjacent to at least one of ridge stripe adjacent portions 40 positioned at both sides of the ridge stripe structure portion 20, at the second end surface side, and to be away from the ridge stripe structure portion 20. A bottom surface of the current regulation region 41 is under the active layer 33, and a top surface of the ridge stripe adjacent portion 40 excluding the current regulation region 41 is above the active layer 33.
    Type: Application
    Filed: March 20, 2015
    Publication date: February 16, 2017
    Inventors: YOSHIAKI WATANABE, TAKAYUKI KAWASUMI
  • Patent number: 9542821
    Abstract: A home security system includes an in-home system and a vehicle-mounted system, wherein the in-home system includes an in-home sensor that is mounted in a home and is capable of detect a state of the home, and an in-home communication module that is capable of communicating with the vehicle-mounted system to sense an abnormality from information of the in-home sensor, and wherein the vehicle-mounted system includes a vehicle-mounted device that is mounted on a vehicle that is capable of a vehicle outside output, and a vehicle-mounted communication module that is capable of communicating with the in-home system via the in-home communication module, and when the in-home system senses the abnormality, an instruction is received from the in-home system via the in-home communication module and vehicle-mounted communication module to deal with the abnormality using the vehicle-mounted device according to the instruction.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: January 10, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshiaki Watanabe, Masahiro Abukawa, Takeshi Mitsui, Takehisa Mizuguchi, Yoshihiro Nakai, Tsutomu Matsubara
  • Patent number: 9499168
    Abstract: Based on a vehicle driving condition indicated by vehicle control information, an image area to be displayed is determined from a panorama image of a vehicle periphery and a judgment is made about a collision possibility between a vehicle outside object appearing in the image area and the vehicle, so that a display image including the image area is generated and displayed on a display 16, and the vehicle is controlled to avoid its collision with the vehicle outside object according to a result of the judgment about the collision possibility.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: November 22, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshiaki Watanabe, Takehisa Mizuguchi, Takeshi Mitsui, Yoshihiro Ogawa, Takafumi Kasuga, Yohei Miki, Takeo Fujita
  • Publication number: 20160266767
    Abstract: When three warnings (a brake abnormality, a charging abnormality and an oil pressure reduction) occur in a vehicle, a brake abnormality icon, a charging abnormality icon and an oil pressure reduction icon are displayed in an icon displaying region of a display. On the other hand, brake abnormality warning information, charging abnormality warning information and oil pressure reduction warning information are displayed, in an information displaying region, in a switching manner every fixed time period.
    Type: Application
    Filed: November 5, 2013
    Publication date: September 15, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takehisa MIZUGUCHI, Yoshihiko MORI, Yoshiaki WATANABE, Hiroyuki YOKOTA, Takeshi MITSUI, Tsutomu MATSUBARA, Masato HIRAI, Masami AIKAWA, Masahiro KOSAKADA, Masakazu OKUDA
  • Publication number: 20160224222
    Abstract: In the case where entertainment information is acquired as information to be displayed on an instrument panel display 1 when an object indicating driving information is displayed on the instrument panel display 1, an object indicating the entertainment information is moved from the outside of a screen of the instrument panel display 1 to the inside of the screen, and the object indicating the driving information and the object indicating the entertainment information are displayed such that all or part of the object indicating the entertainment information passes behind the object indicating the driving information during the movement.
    Type: Application
    Filed: November 12, 2013
    Publication date: August 4, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshihiko MORI, Takehisa MIZUGUCHI, Yoshiaki WATANABE, Yasuaki TAKIMOTO, Hiroyuki YOKOTA
  • Publication number: 20150293319
    Abstract: A surface light emitting semiconductor laser element, comprises a substrate, a lower reflector including a semiconductor multi-layer disposed on the substrate, an active layer disposed on the lower reflector, an upper reflector including a semiconductor multi-layer disposed on the active layer, a compound semiconductor layer having a first opening for exposing the upper reflector and extending over the upper reflector, and a metal film having a second opening for exposing the upper reflector disposed inside of the first opening and extending over the compound semiconductor layer, wherein the metal film and the compound semiconductor layer constitute a complex refractive index distribution structure where a complex refractive index is changed from the center of the second opening towards the outside. A method of emitting laser light in a single-peak transverse mode is also provided.
    Type: Application
    Filed: May 29, 2015
    Publication date: October 15, 2015
    Inventors: Yoshiaki Watanabe, Hironobu Narui, Yuichi Kuromizu, Yoshinori Yamauchi, Yoshiyuki Tanaka