Patents by Inventor Katsuhiro Okamura

Katsuhiro Okamura 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: 20240136778
    Abstract: A disclosed apparatus may include (1) a power enclosure electrically coupled to a power supply module of a computing device, (2) a power connector that (A) is electrically coupled to a power cable that facilitates carrying electric current to the power supply module via the power enclosure and (B) is dimensioned to mate with the power enclosure, and (3) at least one power switch that (A) is electrically coupled to the power enclosure, (B) is configured to be engaged by at least one feature of the power connector while the power connector is fully mated with the power enclosure, and when engaged by the feature of the power connector, (C) enables electric current to flow from the power connector to the power supply module via the power enclosure. Various other apparatuses, systems, and methods are also disclosed.
    Type: Application
    Filed: December 30, 2023
    Publication date: April 25, 2024
    Inventors: Theodor A. Gutfeldt, Phu H. Truong, Katsuhiro Okamura, Viktor Sokolenko
  • Patent number: 11923642
    Abstract: A disclosed apparatus may include (1) a power enclosure electrically coupled to a power supply module of a computing device, (2) a power connector that (A) is electrically coupled to a power cable that facilitates carrying electric current to the power supply module via the power enclosure and (B) is dimensioned to mate with the power enclosure, and (3) at least one power switch that (A) is electrically coupled to the power enclosure, (B) is configured to be engaged by at least one feature of the power connector while the power connector is fully mated with the power enclosure, and when engaged by the feature of the power connector, (C) enables electric current to flow from the power connector to the power supply module via the power enclosure. Various other apparatuses, systems, and methods are also disclosed.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: March 5, 2024
    Assignee: Juniper Networks, Inc.
    Inventors: Theodor A. Gutfeldt, Phu H. Truong, Katsuhiro Okamura, Viktor Sokolenko
  • Publication number: 20230266807
    Abstract: A power supply assembly includes an input module that includes one or more captive screws, one or more first power supply connection components, and one or more first input feed connection components; and a power supply unit that includes one or more captive screw connection switches, one or more second power supply connection components, and one or more second input feed connection components. The input module is to physically and electrically connect to the power supply unit; the one or more captive screws are to physically engage, respectively, the one or more captive screw connection switches; the one or more first power supply connection components are to physically and electrically connect to, respectively, the one or more second power supply connection components; and the one or more first input feed connection components are to physically and electrically connect to, respectively, the one or more second input feed connection components.
    Type: Application
    Filed: February 18, 2022
    Publication date: August 24, 2023
    Inventors: Varaha Venkata Satya Narayana JAGARAPU, Muhammad SAGARWALA, Katsuhiro OKAMURA, Franklin Demick BOYDEN, Jaspal S. GILL, David K. OWEN
  • Patent number: 11664660
    Abstract: A disclosed apparatus may include (1) a first plurality of power feeds that are electrically ORed to form an channel input, wherein the channel input is electrically coupled to a first channel of a power supply, (2) a first plurality of switches electrically coupled inline on the first plurality of power feeds, wherein the first plurality of switches are individually programmable to open or close electrical continuity, (3) a second plurality of power feeds that are electrically ORed to form an additional channel input, wherein the additional channel input is electrically coupled to a second channel of the power supply, and (4) a second plurality of switches electrically coupled inline on the second plurality of power feeds, wherein the second plurality of switches are individually programmable to open or close electrical continuity. Various other apparatuses, systems, and methods are also disclosed.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: May 30, 2023
    Assignee: Juniper Networks, Inc.
    Inventors: David K. Owen, Jaspal S. Gill, Marshall J. Lise, Katsuhiro Okamura
  • Patent number: 11611162
    Abstract: An apparatus may include (1) a terminal connector configured to be electrically coupled to a power interface of a computing device, (2) an inline terminal block assembly that is independent of the terminal connector, (3) at least one terminal-side power cable configured to be electrically coupled between the terminal connector and the inline terminal block assembly, and (4) at least one distribution-side power cable configured to be electrically coupled between the inline terminal block assembly and a power distribution system.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: March 21, 2023
    Assignee: Juniper Networks, Inc
    Inventors: Katsuhiro Okamura, Sriram Gopalaratnam, Mahesh Nagarajan, Marshall J. Lise
  • Publication number: 20220255269
    Abstract: A disclosed apparatus may include (1) a power enclosure electrically coupled to a power supply module of a computing device, (2) a power connector that (A) is electrically coupled to a power cable that facilitates carrying electric current to the power supply module via the power enclosure and (B) is dimensioned to mate with the power enclosure, and (3) at least one power switch that (A) is electrically coupled to the power enclosure, (B) is configured to be engaged by at least one feature of the power connector while the power connector is fully mated with the power enclosure, and when engaged by the feature of the power connector, (C) enables electric current to flow from the power connector to the power supply module via the power enclosure. Various other apparatuses, systems, and methods are also disclosed.
    Type: Application
    Filed: February 10, 2021
    Publication date: August 11, 2022
    Inventors: Theodor A. Gutfeldt, Phu H. Truong, Katsuhiro Okamura, Viktor Sokolenko
  • Patent number: 10998763
    Abstract: A device may include a power supply module (PSM). The PSM may receive information regarding one or more programmable restrictions associated with a power supply. The PSM may receive a measurement of voltage associated with the power supply. The PSM may determine a current associated with the power supply based on the one or more programmable restrictions, the measurement of voltage, and a first amount of power associated with the power supply. The PSM may cause a load associated with the power supply to be adjusted based on determining the current without removing power for a connection between the power supply and a power source associated with the power supply. The PSM may cause the power supply to provide a second amount of power based on causing the load associated with the power supply to be adjusted.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: May 4, 2021
    Assignee: Juniper Networks, Inc.
    Inventors: Katsuhiro Okamura, Jaspal S. Gill, Muhammad Sagarwala
  • Patent number: 10732691
    Abstract: The disclosed method may include (1) monitoring, while a computing device receives power from an external power supply, (A) the amount of power consumed by the computing device and (B) the amount of power provided to the computing device by the external power supply, (2) detecting that the amount of power provided to the computing device exceeds the amount of power consumed by the computing device by at least a certain threshold, (3) determining, based on the amount of power provided to the computing device exceeding the amount of power consumed by the computing device by the certain threshold, that the computing device is experiencing a malfunction, and then (4) mitigating potential damage to the computing device due to the malfunction by at least partially reducing the amount of power provided to the computing device from the external power supply. Various other apparatuses, systems, and methods are disclosed.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: August 4, 2020
    Assignee: Juniper Networks, Inc
    Inventors: Franklin D. Boyden, David K. Owen, Anupama Padminidevi Karthikeyan Nair, Jaspal S. Gill, Katsuhiro Okamura, Michael D. Savini
  • Publication number: 20200073458
    Abstract: The disclosed method may include (1) monitoring, while a computing device receives power from an external power supply, (A) the amount of power consumed by the computing device and (B) the amount of power provided to the computing device by the external power supply, (2) detecting that the amount of power provided to the computing device exceeds the amount of power consumed by the computing device by at least a certain threshold, (3) determining, based on the amount of power provided to the computing device exceeding the amount of power consumed by the computing device by the certain threshold, that the computing device is experiencing a malfunction, and then (4) mitigating potential damage to the computing device due to the malfunction by at least partially reducing the amount of power provided to the computing device from the external power supply. Various other apparatuses, systems, and methods are disclosed.
    Type: Application
    Filed: August 31, 2018
    Publication date: March 5, 2020
    Inventors: Franklin D. Boyden, David K. Owen, Anupama Padminidevi Karthikeyan Nair, Jaspal S. Gill, Katsuhiro Okamura, Michael D. Savini
  • Patent number: 10455727
    Abstract: The disclosed apparatus may include may include (1) an active power supply blank that (A) fits within a power supply slot of a network device that forwards network traffic and (B) generates airflow that cools the network device and (2) a power interface that electrically couples the active power supply blank to the network device, wherein the power interface enables the active power supply blank to (A) draw electrical power from the network device and (B) generate the airflow that cools the network device using the electrical power drawn from the network device. Various other apparatuses, systems, and methods are also disclosed.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: October 22, 2019
    Assignee: Juniper Networks, Inc
    Inventors: Travis S. Mikjaniec, Susheela Nanjunda Rao Narasimhan, Gauri R. Khanolkar, Katsuhiro Okamura
  • Publication number: 20190273394
    Abstract: A device may include a power supply module (PSM). The PSM may receive information regarding one or more programmable restrictions associated with a power supply. The PSM may receive a measurement of voltage associated with the power supply. The PSM may determine a current associated with the power supply based on the one or more programmable restrictions, the measurement of voltage, and a first amount of power associated with the power supply. The PSM may cause a load associated with the power supply to be adjusted based on determining the current without removing power for a connection between the power supply and a power source associated with the power supply. The PSM may cause the power supply to provide a second amount of power based on causing the load associated with the power supply to be adjusted.
    Type: Application
    Filed: May 16, 2019
    Publication date: September 5, 2019
    Inventors: Katsuhiro OKAMURA, Jaspal S. GILL, Muhammad SAGARWALA
  • Patent number: 10298055
    Abstract: A device may include a power supply module (PSM). The PSM may receive information regarding one or more programmable restrictions associated with a power supply. The PSM may receive a measurement of voltage associated with the power supply. The PSM may determine a current associated with the power supply based on the one or more programmable restrictions, the measurement of voltage, and a first amount of power associated with the power supply. The PSM may cause a load associated with the power supply to be adjusted based on determining the current without removing power for a connection between the power supply and a power source associated with the power supply. The PSM may cause the power supply to provide a second amount of power based on causing the load associated with the power supply to be adjusted.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: May 21, 2019
    Assignee: Juniper Networks, Inc.
    Inventors: Katsuhiro Okamura, Jaspal S. Gill, Muhammad Sagarwala
  • Patent number: 10082856
    Abstract: A device may select a power supply module (PSM), from a plurality of PSMs that operate in a current sharing mode, for performing a health check. The device may perform the health check on the selected PSM by iteratively modifying an output voltage of the selected PSM and monitoring for a corresponding modification in an output current of the selected PSM. The device may determine whether the selected PSM is capable of delivering a particular load without a failure based on performing the health check. The device may perform an action based on whether the selected PSM is capable of delivering the particular load without the failure.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: September 25, 2018
    Assignee: Juniper Networks, Inc.
    Inventors: David K. Owen, Jaspal S. Gill, Katsuhiro Okamura, Sylvia Toma, Subramanyam Tallak
  • Patent number: 9985440
    Abstract: A system may include a power source selector device connected to a plurality of power sources. The system may also include multiple power supply modules (PSMs). A first PSM, of the multiple PSMs, may be connected to a first output of the power source selector device. A second PSM, of the multiple PSMs, may be connected to a second output of the power source selector device. The first output of the power source selector device may be different from the second output of the power source selector device. The system may also include a controller device connected to the power source selector device and each of the multiple PSMs.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: May 29, 2018
    Assignee: Juniper Networks, Inc.
    Inventor: Katsuhiro Okamura
  • Patent number: 9921624
    Abstract: The disclosed apparatus may include (1) at least one power interface that unites a plurality of power supplies that output electrical power for consumption by a network device that facilitates network traffic within a network and (2) a power-management unit communicatively coupled to the plurality of power supplies, wherein the power-management unit (A) detects an operating temperature of a power supply within the plurality of power supplies that output electrical power for consumption by the network device, (B) determines that the operating temperature of the power supply exceeds a temperature threshold, and then (C) modifies an amount of electrical power being output by the power supply to account for the operating temperature exceeding the temperature threshold. Various other apparatuses, systems, and methods are also disclosed.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: March 20, 2018
    Assignee: Juniper Networks, Inc.
    Inventor: Katsuhiro Okamura
  • Patent number: 8935010
    Abstract: This disclosure describes techniques for managing a power supply for hot-swappable components of a high-power networking device. According to these techniques, a high-power networking device includes a power distribution module (PDM). The PDM is receive a high-voltage, high-power supply input, generate supply plurality of high-power, reduced voltage supplies, and distribute the plurality of high-power reduced voltage supplies to a plurality of hot-swappable components of the high-power networking system via an intermediate distribution plane.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: January 13, 2015
    Assignee: Juniper Networks, Inc.
    Inventors: Katsuhiro Okamura, Nathan Berg
  • Patent number: 6489748
    Abstract: A system and method for providing power to a set of logic cards that enables approximately twice as much power to be supplied to the logic cards than would normally be available using conventional power supply systems and methods. The system includes a system backplane having a split power plane, wherein each half of the split power plane receives power from a separate power supply circuit. Preferably, the power supply circuits comprise circuit portions of a power entry module (PEM), which typically is connected to a pair of service points provided by a DC or an AC power source. The PEM and system backplane include circuitry to enable a single backplane to be powered by two separate power supplies, thereby providing the system backplane and the set of logic cards with approximately twice as much power than could normally be provided by a single service point.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: December 3, 2002
    Assignee: Cisco Technology, Inc.
    Inventor: Katsuhiro Okamura