Patents by Inventor Nobukazu Ito

Nobukazu Ito 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: 20240134474
    Abstract: A display driver includes a driver circuit and a sensing controller. The driver circuit is configured to drive a display panel according to display information. The display panel defines a sensing region. The sensing controller interface circuit is configured to transmit an output vertical sync signal to a proximity sensing controller. The proximity sensing controller is configured to generate positional information of an input object based at least in part on a resulting signal received from a sensor electrode disposed in the sensing region. The output vertical sync signal comprises encoding the display information in the output vertical sync signal.
    Type: Application
    Filed: January 3, 2024
    Publication date: April 25, 2024
    Inventors: Makoto Takeuchi, Hirokazu Hatayama, Masaaki Shiomura, Nobukazu Tanaka, Daisuke Ito, Takayuki Noto, Takashi Miyamoto
  • Publication number: 20240069671
    Abstract: In general, in one aspect, one or more embodiments relate to an input device that includes a proximity sensing panel including sensor electrodes, and a proximity sensing circuit. The proximity sensing circuit configured to receive an indication of a transition from a first image refresh rate to a second image refresh rate, wherein the first image refresh rate is greater than a beacon signal rate and the second image refresh rate is equal to or lower than the beacon signal rate. The proximity sensing panel is also configured to align transmitting a beacon signal on the proximity sensing panel to a non-refresh period corresponding to the second refresh rate.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Inventors: Masaaki Shiomura, Hirokazu Hatayama, Makoto Takeuchi, Takayuki Noto, Nobukazu Tanaka, Daisuke Ito, Tomohiro Hirakawa
  • Patent number: 11914407
    Abstract: The flow rate control device 10 includes a control valve 11, a restriction part 12 provided downstream of the control valve 11, an upstream pressure sensor 13 for measuring a pressure P1 between the control valve 11 and the restriction part 12, a differential pressure sensor 20 for measuring a differential pressure ?P between the upstream and the downstream of the restriction part 12, and an arithmetic control circuit 16 connected to the control valve 11, the upstream pressure sensor 13, and the differential pressure sensor 20.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: February 27, 2024
    Assignee: FUJIKIN INCORPORATED
    Inventors: Kaoru Hirata, Keisuke Ideguchi, Shinya Ogawa, Katsuyuki Sugita, Masaaki Nagase, Kouji Nishino, Nobukazu Ikeda, Hiroyuki Ito
  • Patent number: 7777288
    Abstract: In a temperature sensor section of a semiconductor integrated circuit device, wires of the topmost wiring layer of a multi-layer wiring structure are formed. A sheet-like temperature monitor element of vanadium oxide is provided between two of the wires in such a way as to cover the two wires. Accordingly, the temperature monitor element is connected between the two wires of an underlying wiring layer of the multi-layer wiring structure through two vias and the two wires of the topmost wiring layer.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: August 17, 2010
    Assignees: NEC Electronics Corporation, NEC Corporation
    Inventors: Naoyoshi Kawahara, Hiroshi Murase, Hiroaki Ohkubo, Kuniko Kikuta, Yasutaka Nakashiba, Naoki Oda, Tokuhito Sasaki, Nobukazu Ito
  • Patent number: 7741692
    Abstract: In a semiconductor integrated circuit device, a logic circuit section is provided at the top surface of a P-type silicon substrate and a multi-level wiring layer. The device is further provided with a temperature sensor section in which a first temperature monitor member of vanadium oxide is provided above the multi-level wiring layer. A second temperature monitor member of Ti is provided at a lowermost layer of the multi-level wiring layer. The first and second temperature monitor members are connected in series between a ground potential wire and a power-source potential wire, with an output terminal connected to the node of both members. The temperature coefficient of the electric resistivity of the first temperature monitor member is negative, while that of the second temperature monitor member is positive.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: June 22, 2010
    Assignees: NEC Electronics Corporation, NEC Corporation
    Inventors: Hiroaki Ohkubo, Yasutaka Nakashiba, Naoyoshi Kawahara, Hiroshi Murase, Naoki Oda, Tokuhito Sasaki, Nobukazu Ito
  • Patent number: 7462921
    Abstract: A vanadium oxide film is formed on an interlayer insulating layer, and a silicon oxide film and a silicon nitride film are formed on the vanadium oxide film in this order. With a resist pattern used as a mask, the silicon nitride film is patterned. Then, the resist pattern is removed using a stripping solution or oxygen plasma ashing. Next, with the patterned silicon nitride film used as a mask, the silicon oxide film and the vanadium oxide film are etched to form a resistor film of vanadium oxide.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: December 9, 2008
    Assignees: NEC Corporation, NEC Electronics Corporation
    Inventors: Naoyoshi Kawahara, Hiroshi Murase, Hiroaki Ohkubo, Yasutaka Nakashiba, Naoki Oda, Tokuhito Sasaki, Nobukazu Ito
  • Patent number: 7391092
    Abstract: In a semiconductor integrated circuit device, a sheet-like temperature monitor member of vanadium oxide is provided, whose one end is connected to one via while the other end is connected to another via. A sheet-like thermal conducting layer of aluminum is provided below the temperature monitor member. A region equal to or greater than a half of the entire temperature monitor member overlies the thermal conducting layer in a plan view.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: June 24, 2008
    Assignees: NEC Electronics Corporation, NEC Corporation
    Inventors: Hiroaki Ohkubo, Yasutaka Nakashiba, Naoyoshi Kawahara, Hiroshi Murase, Naoki Oda, Tokuhito Sasaki, Nobukazu Ito
  • Patent number: 7239002
    Abstract: In a temperature sensor section of a semiconductor integrated circuit device, first vias of tungsten are formed at the topmost layer of a multi-layer wiring layer and pads of titanium are provided on regions of the multi-layer wiring layer which covers the vias. An insulating layer is provided in such a way as to cover the multi-layer wiring layer and the pads, second vias are so formed as to reach the pads. Vanadium oxide is buried in the second vias by reactive sputtering, and a temperature monitor part of vanadium oxide is provided in such a way as to connect the second vias each other. Accordingly, the temperature monitor part is connected between the two wires.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: July 3, 2007
    Assignees: NEC Electronics Corporation, NEC Corporation
    Inventors: Hiroaki Ohkubo, Kuniko Kikuta, Yasutaka Nakashiba, Naoyoshi Kawahara, Hiroshi Murase, Naoki Oda, Tokuhito Sasaki, Nobukazu Ito
  • Publication number: 20050218471
    Abstract: In a semiconductor integrated circuit device, a sheet-like temperature monitor member of vanadium oxide is provided, whose one end is connected to one via while the other end is connected to another via. A sheet-like thermal conducting layer of aluminum is provided below the temperature monitor member. A region equal to or greater than a half of the entire temperature monitor member overlies the thermal conducting layer in a plan view.
    Type: Application
    Filed: March 24, 2005
    Publication date: October 6, 2005
    Applicants: NEC Electronics Corporation, NEC Corporation
    Inventors: Hiroaki Ohkubo, Yasutaka Nakashiba, Naoyoshi Kawahara, Hiroshi Murase, Naoki Oda, Tokuhito Sasaki, Nobukazu Ito
  • Publication number: 20050218470
    Abstract: In a semiconductor integrated circuit device, a logic circuit section is provided at the top surface of a P-type silicon substrate and a multi-level wiring layer. The device is further provided with a temperature sensor section in which a first temperature monitor member of vanadium oxide is provided above the multi-level wiring layer. A second temperature monitor member of Ti is provided at a lowermost layer of the multi-level wiring layer. The first and second temperature monitor members are connected in series between a ground potential wire and a power-source potential wire, with an output terminal connected to the node of both members. The temperature coefficient of the electric resistivity of the first temperature monitor member is negative, while that of the second temperature monitor member is positive.
    Type: Application
    Filed: March 24, 2005
    Publication date: October 6, 2005
    Applicants: NEC Electronics Corporation, NEC Corporation
    Inventors: Hiroaki Ohkubo, Yasutaka Nakashiba, Naoyoshi Kawahara, Hiroshi Murase, Naoki Oda, Tokuhito Sasaki, Nobukazu Ito
  • Publication number: 20050221573
    Abstract: A vanadium oxide film is formed on an interlayer insulating layer, and a silicon oxide film and a silicon nitride film are formed on the vanadium oxide film in this order. With a resist pattern used as a mask, the silicon nitride film is patterned. Then, the resist pattern is removed using a stripping solution or oxygen plasma ashing. Next, with the patterned silicon nitride film used as a mask, the silicon oxide film and the vanadium oxide film are etched to form a resistor film of vanadium oxide.
    Type: Application
    Filed: March 23, 2005
    Publication date: October 6, 2005
    Applicants: NEC Electronics Corporation, NEC Corporation
    Inventors: Naoyoshi Kawahara, Hiroshi Murase, Hiroaki Ohkubo, Yasutaka Nakashiba, Naoki Oda, Tokuhito Sasaki, Nobukazu Ito
  • Publication number: 20050173775
    Abstract: In a temperature sensor section of a semiconductor integrated circuit device, wires of the topmost wiring layer of a multi-layer wiring structure are formed. A sheet-like temperature monitor element of vanadium oxide is provided between two of the wires in such a way as to cover the two wires. Accordingly, the temperature monitor element is connected between the two wires of an underlying wiring layer of the multi-layer wiring structure through two vias and the two wires of the topmost wiring layer.
    Type: Application
    Filed: February 8, 2005
    Publication date: August 11, 2005
    Applicants: NEC Electronics Corporation, NEC Corporation
    Inventors: Naoyoshi Kawahara, Hiroshi Murase, Hiroaki Ohkubo, Kuniko Kikuta, Yasutaka Nakashiba, Naoki Oda, Tokuhito Sasaki, Nobukazu Ito
  • Publication number: 20050161822
    Abstract: In a temperature sensor section of a semiconductor integrated circuit device, first vias of tungsten are formed at the topmost layer of a multi-layer wiring layer and pads of titanium are provided on regions of the multi-layer wiring layer which covers the vias. An insulating layer is provided in such a way as to cover the multi-layer wiring layer and the pads, second vias are so formed as to reach the pads. Vanadium oxide is buried in the second vias by reactive sputtering, and a temperature monitor part of vanadium oxide is provided in such a way as to connect the second vias each other. Accordingly, the temperature monitor part is connected between the two wires.
    Type: Application
    Filed: January 21, 2005
    Publication date: July 28, 2005
    Applicants: NEC Electronics Corporation, NEC Corporation
    Inventors: Hiroaki Ohkubo, Kuniko Kikuta, Yasutaka Nakashiba, Naoyoshi Kawahara, Hiroshi Murase, Naoki Oda, Tokuhito Sasaki, Nobukazu Ito
  • Publication number: 20030186540
    Abstract: There is provided a method and apparatus for forming fine circuit interconnects that can form, by copper plating, copper interconnects in which movement of copper atoms is retarded or suppressed whereby the migration is prevented. The method for forming fine circuit interconnects, comprising, providing a substrate for electronic circuit having fine circuit patterns which are covered with a barrier layer and optionally a seed layer, forming a first plated film on the surface of the substrate by copper alloy plating, and forming a second plated film on the surface of the first plated film by copper plating.
    Type: Application
    Filed: March 28, 2003
    Publication date: October 2, 2003
    Inventors: Nobukazu Ito, Akihisa Hongo, Akira Fukunaga, Mizuki Nagai, Ryoichi Kimizuka, Takeshi Kobayashi, Takuro Sato
  • Patent number: 6573607
    Abstract: There is presented a semiconductor device including multiple levels of copper interconnects; wherein the surface of a copper interconnect corresponding to at least one underlying layer of another copper interconnect layer is turned into copper oxide to a thickness of 30 nm or more by oxidation conducted at the oxidation rate of 20 nm/min or less, and thereby the reflection of the exposure light from the lower-level copper interconnect is prevented, in forming by means of photolithography a trench to form a copper interconnect through damascening.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: June 3, 2003
    Assignee: NEC Electronics Corporation
    Inventors: Nobukazu Ito, Yoshihisa Matsubara
  • Patent number: 6538719
    Abstract: Vibration isolators (56B, 56C) supporting a main column (14) is mounted on a base plate (BP1), and vibration isolators (66B, 66C) supporting a stage supporting bed (16) is mounted independently of the base plate (BP1) on a base plate (BP2) arranged on the floor (FD). Therefore, vibration traveling between the base plates (BP1, BP2) is cut off, and the reaction force produced due to the movement (driving) of a wafer stage (WST) is not the cause of vibration of a projection optical system (PL) supported by the main column (14). Accordingly, a positional shift of the pattern to be transferred or an image blur due to the vibration of the projection optical system (PL) can be effectively avoided, and the exposure accuracy can be improved. Furthermore, it is possible to increase the speed and size of the substrate stage (WST), therefore, the throughput can also be improved.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: March 25, 2003
    Assignee: Nikon Corporation
    Inventors: Masato Takahashi, Nobukazu Ito
  • Patent number: 6512281
    Abstract: A method of forming a multi-layer structure over an insulating layer comprises the steps of: selectively depositing a barrier layer on a predetermined region of an insulating layer by use of a first deposition mask; selectively depositing a metal seed layer made of a metal which is different in substance from the barrier layer by use of a second deposition mask, so that the metal seed layer extends not only on an entire surface of the barrier layer but also a peripheral region positioned outside the predetermined region of the insulating layer; and forming a metal plating layer made of the same metal as the seed layer, so that the metal plating layer is adhered on the metal seed layer whereby the metal plating layer is separated from the barrier layer and also from the insulating layer.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: January 28, 2003
    Assignee: NEC Corporation
    Inventor: Nobukazu Ito
  • Patent number: 6465354
    Abstract: A manufacturing method of a semiconductor device which includes wiring dense part and wiring isolated part enables occurrence of ‘Erosion’ to be prevented, as well as it is capable of being prevented occurrence of ‘micro-scratch’ on surface of oxide layer. The manufacturing method sets a plurality of trench-parts on insulation layer, before forming metal plating layer consisting of copper so as to embed trench-parts. Manufacturing process implements annealing in such a way that grain-size of the metal plating layer in the wiring dense part becomes smaller than the grain-size in the wiring isolated part. The annealing, for instance, is implemented with substrate temperature of 70 to 200° C. Subsequently, the manufacturing step perfects the semiconductor device while polishing the metal plating layer to cause the surface of the substrate to be flat.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: October 15, 2002
    Assignee: NEC Corporation
    Inventors: Kazumi Sugai, Nobukazu Ito, Hiroaki Tachibana
  • Patent number: 6372114
    Abstract: A method of forming a multi-layer structure over an insulating layer comprises the steps of: selectively depositing a barrier layer on a predetermined region of an insulating layer by use of a first deposition mask; selectively depositing a metal seed layer made of a metal which is different in substance from the barrier layer by use of a second deposition mask, so that the metal seed layer extends not only on an entire surface of the barrier layer but also a peripheral region positioned outside the predetermined region of the insulating layer; and forming a metal plating layer made of the metal of the metal seed layer, so that the metal plating layer is adhered on the metal seed layer whereby the metal plating layer is separated from the barrier layer and also from the insulating layer.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: April 16, 2002
    Assignee: NEC Corporation
    Inventor: Nobukazu Ito
  • Publication number: 20020005587
    Abstract: There is presented a semiconductor device including multiple levels of copper interconnects; wherein the surface of a copper interconnect corresponding to at least one underlying layer of another copper interconnect layer is turned into copper oxide to a thickness of 30 nm or more by oxidation conducted at the oxidation rate of 20 nm/min or less, and thereby the reflection of the exposure light from the lower-level copper interconnect is prevented, in forming by means of photolithography a trench to form a copper interconnect through damascening.
    Type: Application
    Filed: August 24, 2001
    Publication date: January 17, 2002
    Inventors: Nobukazu Ito, Yoshihisa Matsubara