Patents by Inventor Hitoshi Tomizawa
Hitoshi Tomizawa 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: 11762436Abstract: A flexible circuit board includes a plurality of first wires that have a first connection area and a first insulating layer that covers the first wires such that the first connection area is exposed. A printed circuit board includes a plurality of second wires that have a second connection area, a second insulating layer that covers the second wires such that the second connection area is exposed, and a plurality of island conductors adjacent to the second wires across a gap. The second connection area is covered with an anisotropic conductive layer. Each of the second wires in the second connection area at least partially faces a corresponding one of the wires in the first connection area across the anisotropic conductive layer. The plurality of island conductors include an island conductor that is in contact with the anisotropic conductive layer and partially exposed from the anisotropic conductive layer.Type: GrantFiled: November 17, 2022Date of Patent: September 19, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Hitoshi Tomizawa, Atsuji Okada, Yohichiroh Sakaki, Mitsuhiro Sugimoto, Hiroaki Nakaminami
-
Publication number: 20230071011Abstract: A flexible circuit board includes a plurality of first wires that have a first connection area and a first insulating layer that covers the first wires such that the first connection area is exposed. A printed circuit board includes a plurality of second wires that have a second connection area, a second insulating layer that covers the second wires such that the second connection area is exposed, and a plurality of island conductors adjacent to the second wires across a gap. The second connection area is covered with an anisotropic conductive layer. Each of the second wires in the second connection area at least partially faces a corresponding one of the wires in the first connection area across the anisotropic conductive layer. The plurality of island conductors include an island conductor that is in contact with the anisotropic conductive layer and partially exposed from the anisotropic conductive layer.Type: ApplicationFiled: November 17, 2022Publication date: March 9, 2023Inventors: HITOSHI TOMIZAWA, ATSUJI OKADA, YOHICHIROH SAKAKI, MITSUHIRO SUGIMOTO, HIROAKI NAKAMINAMI
-
Patent number: 11543867Abstract: A flexible circuit board includes a plurality of first wires that have a first connection area and a first insulating layer that covers the first wires such that the first connection area is exposed. A printed circuit board includes a plurality of second wires that have a second connection area, a second insulating layer that covers the second wires such that the second connection area is exposed, and a plurality of island conductors adjacent to the second wires across a gap. The second connection area is covered with an anisotropic conductive layer. Each of the second wires in the second connection area at least partially faces a corresponding one of the first wires in the first connection area across the anisotropic conductive layer. The plurality of island conductors include an island conductor that is in contact with the anisotropic conductive layer and partially exposed from the anisotropic conductive layer.Type: GrantFiled: December 7, 2020Date of Patent: January 3, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Hitoshi Tomizawa, Atsuji Okada, Yohichiroh Sakaki, Mitsuhiro Sugimoto, Hiroaki Nakaminami
-
Publication number: 20210181815Abstract: A flexible circuit board includes a plurality of first wires that have a first connection area and a first insulating layer that covers the first wires such that the first connection area is exposed. A printed circuit board includes a plurality of second wires that have a second connection area, a second insulating layer that covers the second wires such that the second connection area is exposed, and a plurality of island conductors adjacent to the second wires across a gap. The second connection area is covered with an anisotropic conductive layer. Each of the second wires in the second connection area at least partially faces a corresponding one of the first wires in the first connection area across the anisotropic conductive layer. The plurality of island conductors include an island conductor that is in contact with the anisotropic conductive layer and partially exposed from the anisotropic conductive layer.Type: ApplicationFiled: December 7, 2020Publication date: June 17, 2021Inventors: HITOSHI TOMIZAWA, ATSUJI OKADA, YOHICHIROH SAKAKI, MITSUHIRO SUGIMOTO, HIROAKI NAKAMINAMI
-
Patent number: 10393953Abstract: A light source device includes: a light source section; a light guide plate; and a supporting member supporting the light source section so as to oppose a peripheral surface of the light guide plate. The light source section includes light sources and a light source substrate having a surface on which the light sources are mounted. The supporting member has an opposed surface opposing a rear surface of the light guide plate. The opposed surface has receptacles to allow the light source section to be attached so that the surface of the light source substrate opposes one end surface of the light guide plate. The receptacles are arranged so that the light source section can be attached to a selected receptacle, resulting in different separation distances between the light source section and the one end surface of the light guide plate.Type: GrantFiled: March 29, 2017Date of Patent: August 27, 2019Assignee: Sakai Display Products CorporationInventors: Hitoshi Tomizawa, Kazuya Idei
-
Publication number: 20170199316Abstract: A light source device includes: a light source section; a light guide plate; and a supporting member supporting the light source section so as to oppose a peripheral surface of the light guide plate. The light source section includes light sources and a light source substrate having a surface on which the light sources are mounted. The supporting member has an opposed surface opposing a rear surface of the light guide plate. The opposed surface has receptacles to allow the light source section to be attached so that the surface of the light source substrate opposes one end surface of the light guide plate. The receptacles are arranged so that the light source section can be attached to a selected receptacle, resulting in different separation distances between the light source section and the one end surface of the light guide plate.Type: ApplicationFiled: March 29, 2017Publication date: July 13, 2017Inventors: Hitoshi Tomizawa, Kazuya Idei
-
Patent number: 7372861Abstract: An access control apparatus and method limits, to a finite time length, connection of a user terminal to a public network. The user terminal is disconnected from the public network when the use time of the logical address assigned to the user terminal reaches the time limit set for the logical address. The apparatus and method utilizes IDs issued to multiple users and IDs for multiple user terminals, and enables limiting connection to a public network from a user terminal that is connected by a leased circuit.Type: GrantFiled: May 6, 2004Date of Patent: May 13, 2008Assignee: NEC CorporationInventor: Hitoshi Tomizawa
-
Patent number: 7095745Abstract: A communication apparatus is provided which comprises: extraction means for extracting a virtual path identifier and a virtual channel identifier stored in a first header of first cells output from a terminal; preparation means which, based on the extracted virtual path identifier and virtual channel identifier, refers to a conversion table to prepare a second header containing a corresponding identifier; cell generation means for generating second cells containing the prepared second header and the user information of the first cells; multiplexing/generation means for multiplexing the generated second cells so as to have a fixed length, thereby generating third cells; and send means for sending the generated third cells to other communication apparatus through a virtual channel. By virtue of this construction, the usage charge of communication lines, such as ATM lines, can be reduced.Type: GrantFiled: July 2, 2001Date of Patent: August 22, 2006Assignee: NEC CorporationInventor: Hitoshi Tomizawa
-
Publication number: 20050021717Abstract: An access control apparatus and method limits, to a finite time length, connection of a user terminal to a public network. The user terminal is disconnected from the public network when the use time of the logical address assigned to the user terminal reaches the time limit set for the logical address. The apparatus and method utilizes IDs issued to multiple users and IDs for multiple user terminals, and enables limiting connection to a public network from a user terminal that is connected by a leased circuit.Type: ApplicationFiled: May 6, 2004Publication date: January 27, 2005Inventor: Hitoshi Tomizawa
-
Publication number: 20020001312Abstract: A communication apparatus is provided which comprises: extraction means for extracting a virtual path identifier and a virtual channel identifier stored in a first header of first cells output from a terminal; preparation means which, based on the extracted virtual path identifier and virtual channel identifier, refers to a conversion table to prepare a second header containing a corresponding identifier; cell generation means for generating second cells containing the prepared second header and the user information of the first cells; multiplexing/generation means for multiplexing the generated second cells so as to have a fixed length, thereby generating third cells; and send means for sending the generated third cells to other communication apparatus through a virtual channel. By virtue of this construction, the usage charge of communication lines, such as ATM lines, can be reduced.Type: ApplicationFiled: July 2, 2001Publication date: January 3, 2002Applicant: NEC CorporationInventor: Hitoshi Tomizawa