Patents by Inventor Yuji Iwai

Yuji Iwai 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: 20230251523
    Abstract: An illuminating unit includes: a plurality of light sources; a light-guide plate including an end surface disposed to face the plurality of light sources, a first surface that outputs light which is based on incident light from the end surface, and a second surface that faces the first surface and includes a plurality of convex parts; and an optical sheet adhered to side of the second surface of the light-guide plate, with the plurality of convex parts being interposed therebetween. The plurality of convex parts include a plurality of first convex parts disposed in a first region inside the second surface, and one or plurality of second convex parts disposed in at least a portion of a second region on a periphery of the first region inside the second surface.
    Type: Application
    Filed: February 3, 2023
    Publication date: August 10, 2023
    Inventors: Kenji HATA, Yuji IWAI, Seiji HAYASHIMOTO, Yuji NAKAHATA
  • Patent number: 11604381
    Abstract: An illuminating unit includes: a plurality of light sources; a light-guide plate including an end surface disposed to face the plurality of light sources, a first surface that outputs light which is based on incident light from the end surface, and a second surface that faces the first surface and includes a plurality of convex parts; and an optical sheet adhered to side of the second surface of the light-guide plate, with the plurality of convex parts being interposed therebetween. The plurality of convex parts include a plurality of first convex parts disposed in a first region inside the second surface, and one or plurality of second convex parts disposed in at least a portion of a second region on a periphery of the first region inside the second surface.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: March 14, 2023
    Assignee: SATURN LICENSING LLC
    Inventors: Kenji Hata, Yuji Iwai, Seiji Hayashimoto, Yuji Nakahata
  • Publication number: 20220357617
    Abstract: An illuminating unit includes: a plurality of light sources; a light-guide plate including an end surface disposed to face the plurality of light sources, a first surface that outputs light which is based on incident light from the end surface, and a second surface that faces the first surface and includes a plurality of convex parts; and an optical sheet adhered to side of the second surface of the light-guide plate, with the plurality of convex parts being interposed therebetween. The plurality of convex parts include a plurality of first convex parts disposed in a first region inside the second surface, and one or plurality of second convex parts disposed in at least a portion of a second region on a periphery of the first region inside the second surface.
    Type: Application
    Filed: July 25, 2022
    Publication date: November 10, 2022
    Inventors: Kenji HATA, Yuji IWAI, Seiji HAYASHIMOTO, Yuji NAKAHATA
  • Patent number: 11428983
    Abstract: An illuminating unit includes: a plurality of light sources; a light-guide plate including an end surface disposed to face the plurality of light sources, a first surface that outputs light which is based on incident light from the end surface, and a second surface that faces the first surface and includes a plurality of convex parts; and an optical sheet adhered to side of the second surface of the light-guide plate, with the plurality of convex parts being interposed therebetween. The plurality of convex parts include a plurality of first convex parts disposed in a first region inside the second surface, and one or plurality of second convex parts disposed in at least a portion of a second region on a periphery of the first region inside the second surface.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: August 30, 2022
    Assignee: SATURN LICENSING LLC
    Inventors: Kenji Hata, Yuji Iwai, Seiji Hayashimoto, Yuji Nakahata
  • Publication number: 20220179262
    Abstract: An illuminating unit includes: a plurality of light sources; a light-guide plate including an end surface disposed to face the plurality of light sources, a first surface that outputs light which is based on incident light from the end surface, and a second surface that faces the first surface and includes a plurality of convex parts; and an optical sheet adhered to side of the second surface of the light-guide plate, with the plurality of convex parts being interposed therebetween. The plurality of convex parts include a plurality of first convex parts disposed in a first region inside the second surface, and one or plurality of second convex parts disposed in at least a portion of a second region on a periphery of the first region inside the second surface.
    Type: Application
    Filed: October 15, 2021
    Publication date: June 9, 2022
    Applicant: Saturn Licensing LLC
    Inventors: Kenji Hata, Yuji Iwai, Seiji Hayashimoto, Yuji Nakahata
  • Publication number: 20220037851
    Abstract: A semiconductor laser device is configured so that, on at least one of the respective opposing surfaces of a semiconductor laser chip and a sub-mount and the respective opposing surfaces of the sub-mount and a heatsink, one or more treatment regions are provided where adhesion of a bonding material or bonding material used for their bonding is reduced, wherein the one or more treatment regions are placed to define, in a traveling direction of light, different coverages depending on a position in an array direction of multiple light emitting regions.
    Type: Application
    Filed: January 10, 2019
    Publication date: February 3, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuji IWAI, Motoharu MIYASHITA, Kyosuke KURAMOTO
  • Patent number: 10373898
    Abstract: A semiconductor device includes a lead frame comprising a first terminal and a second terminal for grounding, a sealing resin which covers the lead frame, an exposed part which is a part of the second terminal and is exposed from the sealing resin and a conductive material which covers the surface of the sealing resin and contacts the second terminal at the exposed part.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: August 6, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuji Iwai, Katsumi Miyawaki
  • Patent number: 10211116
    Abstract: A semiconductor device according to the present invention includes a mounting section provided with a chip mounting region for mounting a semiconductor chip, a frame provided in the mounting section so as to surround the chip mounting region, a cap disposed in contact with the frame so as to cover a space surrounded by the chip mounting region and the frame and a joint that joins the frame and the cap outside a contact surface between the frame and the cap.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: February 19, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroaki Ichinohe, Tatsuto Nishihara, Yuji Iwai
  • Publication number: 20180321555
    Abstract: An illuminating unit includes: a plurality of light sources; a light-guide plate including an end surface disposed to face the plurality of light sources, a first surface that outputs light which is based on incident light from the end surface, and a second surface that faces the first surface and includes a plurality of convex parts; and an optical sheet adhered to side of the second surface of the light-guide plate, with the plurality of convex parts being interposed therebetween. The plurality of convex parts include a plurality of first convex parts disposed in a first region inside the second surface, and one or plurality of second convex parts disposed in at least a portion of a second region on a periphery of the first region inside the second surface.
    Type: Application
    Filed: September 14, 2016
    Publication date: November 8, 2018
    Applicant: Sony Corporation
    Inventors: Kenji Hata, Yuji Iwai, Seiji Hayashimoto, Yuji Nakahata
  • Publication number: 20180005926
    Abstract: A semiconductor device includes a lead frame comprising a first terminal and a second terminal for grounding, a sealing resin which covers the lead frame, an exposed part which is a part of the second terminal and is exposed from the sealing resin and a conductive material which covers the surface of the sealing resin and contacts the second terminal at the exposed part.
    Type: Application
    Filed: March 2, 2017
    Publication date: January 4, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuji IWAI, Katsumi MIYAWAKI
  • Publication number: 20170125316
    Abstract: A semiconductor device according to the present invention includes a mounting section provided with a chip mounting region for mounting a semiconductor chip, a frame provided in the mounting section so as to surround the chip mounting region, a cap disposed in contact with the frame so as to cover a space surrounded by the chip mounting region and the frame and a joint that joins the frame and the cap outside a contact surface between the frame and the cap.
    Type: Application
    Filed: May 26, 2016
    Publication date: May 4, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroaki ICHINOHE, Tatsuto NISHIHARA, Yuji IWAI
  • Patent number: 6108051
    Abstract: A molded part for use in electronic devices using an infrared remote control where the molded part is molded using an infrared transmissive material and an infrared blocking coating is applied thereon. A predetermined pattern of slits or dots is formed on the infrared blocking coating for permitting the transmission and reception of infrared signals.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: August 22, 2000
    Assignee: Sony Corporation
    Inventors: Yuji Iwai, Hideyuki Taguchi, Satoshi Nozuyama
  • Patent number: 6045233
    Abstract: It is made possible to locate arbitrarily a light guiding device and a light emitting means. A notch (11) having a triangular cross-section is formed on a bottom (inner) side of a light guiding device (10) formed so as to have a rectangular cross-section. Furthermore, a light emitting source (12) is provided under the notch (11) of this light guiding device (10). The light emitting source (12) is mounted on a circuit board (13), and controlled according to the state of control or setting in, for example, the electronic appliance. When the light ray from the light emitting source (12) is irradiated toward the notch (11), the emitted light ray is reflected by a reflective face (14) formed by the notch (11) so as to be a plane and a front face (15) of the light guiding device (10) becomes luminous. In addition, the irradiated light ray is partially transmitted through the reflective face (14), and a top face (16) of the light guiding device (10) also becomes luminous.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: April 4, 2000
    Assignee: Sony Corporation
    Inventors: Yuji Iwai, Hideyuki Taguchi
  • Patent number: 5786933
    Abstract: A rear project cabinet for arear projection television set in which the screen and the mirror can be easily set in their positions and an optical accuracy can be established. The screen fixing segment and the mirror fixing segment constituting the rear projector cabinet are formed by plastic material in such a manner that each of its depth size and the inclination angle of the mirror may become a set value, thereby a well-focused appropriate screen can be attained by a mere coupling and assembling of these segments, and even in the case that the screen size at the screen fixing segment is different, it can be accommodated by applying a proper insert die during molding of the mirror fixing segment.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: July 28, 1998
    Assignee: Sony Corporation
    Inventors: Yuji Iwai, Ryoji Naito, Masataka Onishi, Takayasu Ishikawa
  • Patent number: 5526064
    Abstract: A cabinet molded in resin has a grill portion molded in resin by using a predetermined metal mold and having a plurality of holes of small diameter defined in the vertical and horizontal directions. This cabinet is composed of a plurality of substantially straight-lined reinforcing ribs formed on the rear surface of the grill portion, wherein the reinforcing ribs are disposed with a predetermined angle with respect to the direction in which a resin supplied from a resin injection nozzle to the metal mold is flowed upon molding and the reinforcing ribs cross one another.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: June 11, 1996
    Assignee: Sony Corporation
    Inventors: Takenao Okugawa, Yuji Iwai, Takeshi Nakajima