Patents by Inventor Caesar Chen

Caesar Chen 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: 11938632
    Abstract: A method includes: compiling lower-resolution images, captured during a global scan cycle executed over a workpiece, into a virtual model; defining a nominal toolpath and a nominal target force for the workpiece based on a the virtual model; detecting a defect indicator on the workpiece based on the lower-resolution images; accessing a higher-resolution image captured during a local scan cycle over the defect indicator; characterizing the defect indicator as a defect reparable via material removal based on the higher-resolution image; defining a repair toolpath for the defect based on the virtual model; navigating a sanding head over the workpiece according to the repair toolpath to repair the defect; and, during a processing cycle: navigating the sanding head across the workpiece according to the nominal toolpath and deviating the sanding head from the nominal toolpath to maintain forces of the sanding head on the workpiece proximal the nominal target force.
    Type: Grant
    Filed: May 2, 2023
    Date of Patent: March 26, 2024
    Assignee: GrayMatter Robotics Inc.
    Inventors: Avadhoot Ahire, YiWei Chen, Rishav Guha, Satyandra K. Gupta, Ariyan M. Kabir, Ashish Kulkarni, Caesar Navarro, Sagar Panchal, Brual C. Shah
  • Patent number: 7993180
    Abstract: A method for manufacturing a field emission element, the method includes providing one supporting member and wrapping a carbon nanotube (CNT) film around an outer surface of the supporting member at least once. The CNT film includes a plurality of bundles of carbon nanotubes connected in series.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: August 9, 2011
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Liang Liu, Kai-Li Jiang, Shou-Shan Fan, Caesar Chen, Hsi-Fu Lee, Ga-Lane Chen
  • Patent number: 7973464
    Abstract: A given field emission element includes a carbon nanotube field emission wire and at least one supporting protective layer coating an outer surface of the carbon nanotube field emission wire. The carbon nanotube field emission wire is selected from a group consisting of a carbon nanotube yarn, a wire-shaped CNT-polymer composite, and a wire-shaped CNT-glass composite. A method for manufacturing the described field emission element includes the steps of: (a) providing one carbon nanotube field emission wire; (b) forming one supporting protective layer on an outer surface of the carbon nanotube field emission wire; and (c) cutting the carbon nanotube field emission wire to a predetermined length and treating the carbon nanotube emission wire to form the field emission element.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: July 5, 2011
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Liang Liu, Kai-Li Jiang, Shou-Shan Fan, Caesar Chen, Hsi-Fu Lee, Ga-Lane Chen
  • Patent number: 7781950
    Abstract: A field emission element includes one supporting wire and at least one field emission layer coated or otherwise formed on an outer surface of the supporting wire. Each field emission layer includes a plurality of carbon nanotubes (CNTs) and is selected from a group consisting of CNT-polymer composites, CNT-glass composites and single-layer/multi-layer CNT films. A method for manufacturing the described field emission element is also provided. The method includes the steps of: (a) providing one supporting wire; (b) forming at least one field emission layer on an outer surface of the supporting wire; and (c) cutting the supporting wire, after forming the at least one field emission layer thereon, according to a predetermined length and then treating the at least one field emission layer on the supporting wire to form the field emission element.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: August 24, 2010
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Liang Liu, Kai-Li Jiang, Shou-Shan Fan, Caesar Chen, Hsi-Fu Lee, Ga-Lane Chen
  • Patent number: 7741765
    Abstract: A field emission element includes at least one supporting wire and at least one carbon nanotube wire. The supporting wire and the carbon nanotube wire are twisted together. A method for manufacturing the described field emission element is also provided. The method includes the steps of: (a) providing at least one carbon nanotube wire and at least one supporting wire; (b) twisting the carbon nanotube wire and the supporting wire together to form a multi-strand structure by a spinning process; and (c) cutting the multi-strand structure according to a predetermined length to form a field emission element.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: June 22, 2010
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Liang Liu, Kai-Li Jiang, Shou-Shan Fan, Caesar Chen, His-Fu Lee, Ga-Lane Chen
  • Publication number: 20100056012
    Abstract: A method for manufacturing a field emission element, the method includes providing one supporting member and wrapping a carbon nanotube (CNT) film around an outer surface of the supporting member at least once. The CNT film includes a plurality of bundles of carbon nanotubes connected in series.
    Type: Application
    Filed: November 10, 2009
    Publication date: March 4, 2010
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: LIANG LIU, KAI-LI JIANG, SHOU-SHAN FAN, CAESAR CHEN, HSI-FU LEE, GA-LANE CHEN
  • Patent number: 7491883
    Abstract: A coaxial cable (10) includes at least one conducting wire (110), at least one insulating layer (120) coating a respective conducting wire (110), at least one shielding layer (130) surrounding the at least one insulating layer (120), and a single sheath (140) wrapping the at least one shielding layer (130). The shielding layer (130) includes a metal layer and a carbon nanotube film.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: February 17, 2009
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsi-Fu Lee, Liang Liu, Kai-Li Jiang, Caesar Chen, Shou-Shan Fan
  • Patent number: 7459627
    Abstract: A coaxial cable (10) includes at least one conducting wire (110), at least one insulating layer (120) coating a respective conducting wire (110), at least one shielding layer (130) surrounding the at least one insulating layer (120), and a single sheath (140) wrapping the at least one shielding layer (130). The shielding layer (130) is a carbon nanotube film.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: December 2, 2008
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsi-Fu Lee, Liang Liu, Kai-Li Jiang, Caesar Chen, Shou-Shan Fan
  • Patent number: 7449631
    Abstract: A coaxial cable (10) includes at least one conducting wire (110), at least one insulating layer (120) coating a respective conducting wire (110), at least one shielding layer (130) surrounding the at least one insulating layer (120), and a single sheath (140) wrapping the at least one shielding layer (130). The shielding layer (130) includes a number of carbon nanotube yarns.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: November 11, 2008
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsi-Fu Lee, Liang Liu, Kai-Li Jiang, Caesar Chen, Shou-Shan Fan
  • Publication number: 20080251270
    Abstract: A coaxial cable (10) includes at least one conducting wire (110), at least one insulating layer (120) coating a respective conducting wire (110), at least one shielding layer (130) surrounding the at least one insulating layer (120), and a single sheath (140) wrapping the at least one shielding layer (130). The shielding layer (130) includes a number of carbon nanotube yarns.
    Type: Application
    Filed: September 24, 2007
    Publication date: October 16, 2008
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: HSI-FU LEE, LIANG LIU, KAI-LI JIANG, CAESAR CHEN, SHOU-SHAN FAN
  • Publication number: 20080254675
    Abstract: A coaxial cable (10) includes at least one conducting wire (110), at least one insulating layer (120) coating a respective conducting wire (110), at least one shielding layer (130) surrounding the at least one insulating layer (120), and a single sheath (140) wrapping the at least one shielding layer (130). The shielding layer (130) includes a metal layer and a carbon nanotube film.
    Type: Application
    Filed: September 24, 2007
    Publication date: October 16, 2008
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: HSI-FU LEE, LIANG LIU, KAI-LI JIANG, CAESAR CHEN, SHOU-SHAN FAN
  • Publication number: 20080251274
    Abstract: A coaxial cable (10) includes at least one conducting wire (110), at least one insulating layer (120) coating a respective conducting wire (110), at least one shielding layer (130) surrounding the at least one insulating layer (120), and a single sheath (140) wrapping the at least one shielding layer (130). The shielding layer (130) is a carbon nanotube film.
    Type: Application
    Filed: September 24, 2007
    Publication date: October 16, 2008
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: HSI-FU LEE, LIANG LIU, KAI-LI JIANG, CAESAR CHEN, SHOU-SHAN FAN
  • Publication number: 20070296323
    Abstract: A given field emission element includes a carbon nanotube field emission wire and at least one supporting protective layer coating an outer surface of the carbon nanotube field emission wire. The carbon nanotube field emission wire is selected from a group consisting of a carbon nanotube yarn, a wire-shaped CNT-polymer composite, and a wire-shaped CNT-glass composite. A method for manufacturing the described field emission element includes the steps of: (a) providing one carbon nanotube field emission wire; (b) forming one supporting protective layer on an outer surface of the carbon nanotube field emission wire; and (c) cutting the carbon nanotube field emission wire to a predetermined length and treating the carbon nanotube emission wire to form the field emission element.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 27, 2007
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: LIANG LIU, KAI-LI JIANG, SHOU-SHAN FAN, CAESAR CHEN, HSI-FU LEE, GA-LANE CHEN
  • Publication number: 20070296322
    Abstract: A field emission element includes one supporting wire and at least one field emission layer coated or otherwise formed on an outer surface of the supporting wire. Each field emission layer includes a plurality of carbon nanotubes (CNTs) and is selected from a group consisting of CNT-polymer composites, CNT-glass composites and single-layer/multi-layer CNT films. A method for manufacturing the described field emission element is also provided. The method includes the steps of: (a) providing one supporting wire; (b) forming at least one field emission layer on an outer surface of the supporting wire; and (c) cutting the supporting wire, after forming the at least one field emission layer thereon, according to a predetermined length and then treating the at least one field emission layer on the supporting wire to form the field emission element.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 27, 2007
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: LIANG LIU, KAI-LI JIANG, SHOU-SHAN FAN, CAESAR CHEN, HSI-FU LEE, GA-LANE CHEN
  • Publication number: 20070284987
    Abstract: A field emission element includes at least one supporting wire and at least one carbon nanotube wire. The supporting wire and the carbon nanotube wire are twisted together. A method for manufacturing the described field emission element is also provided. The method includes the steps of: (a) providing at least one carbon nanotube wire and at least one supporting wire; (b) twisting the carbon nanotube wire and the supporting wire together to form a multi-strand structure by a spinning process; and (c) cutting the multi-strand structure according to a predetermined length to form a field emission element.
    Type: Application
    Filed: December 21, 2006
    Publication date: December 13, 2007
    Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.
    Inventors: Liang Liu, Kai-Li Jiang, Shou-Shan Fan, Caesar Chen, Hsi-Fu Lee, Ga-Lane Chen
  • Patent number: 6447304
    Abstract: An electrical connector comprises a housing having first and second surfaces and forming a plurality of contact supports formed therein. A plurality of electrical contacts is moveably attached to each corresponding support and has a first contacting end extending beyond the first surface for driving the contact to move along the support upon mating with an electrical device.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: September 10, 2002
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Iosif Korsunsky, Sidney Lu, Caesar Chen
  • Patent number: 6387008
    Abstract: A speed-changing control mechanism of a multistage speed-changing wheel hub has a planetary gear device comprising a gear support and a plurality of planetary gears. The planetary gears are respectively engaged with a ring gear and sun gears. The rotational power of a drive member is transmitted to the ring gear or the gear support via a sleeve. A speed ratio change is brought about by the action of the planetary gears and the sun gears. The power is finally transmitted to the wheel hub via the gear support or the ring gear. The planetary gears are driven by the power input source portion of the sleeve in conjunction with the action of another sleeve on the fastening shaft, thereby controlling two sets of one-way ratchet pawls opposite in direction to engage or disengage.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: May 14, 2002
    Assignee: Industrial Technology Research Institute
    Inventors: Jia-Lin Chen, Ching-Huan Tseng, Caesar Chen
  • Publication number: 20010045330
    Abstract: A bicycle brake shoe, comprising: a support bar; a seat; a brake pad, which is mounted on the seat and for braking pressed against a wheel rim on a contact surface having a front end which faces an opposite movement of the wheel rim; a moving block, mounted on the seat close to the front end of the brake pad, projecting from the brake pad towards the wheel rim, pressed by a spring. The moving block is movable perpendicular to the contact surface of the brake pad and has a projecting surface which upon braking touches the wheel rim prior to the contact surface of the brake pad, scraping water, gravel and dirt from the wheel rim. Thus a braking effect unhampered by water or dirt is achieved.
    Type: Application
    Filed: August 7, 2001
    Publication date: November 29, 2001
    Inventors: Chung-Ping Chiang, Pai-Hsiang Hsu, Caesar Chen, Ching-Huan Tseng
  • Patent number: 6113398
    Abstract: A system (10) for interconnecting two modules (100, 100') to the CUP chip, includes two opposite connectors (12, 14) in a head-to-head arrangement. The traces (200) each of which connects the two corresponding contacts 28/30 and 30'/28' each being located in the same position of the corresponding connector (12, 14), are generally arranged in a parallel relationship. One (12) of the connectors (12, 14) is substantially a standard one. The other (14) of the connectors (12, 14) is generally, but not exactly, of a mirror image with regard to the first one (12), wherein the positions of the two-row contacts (28'/30') with regard to the housing (16') along the lengthwise direction of the second connector (14) are arranged in an opposite relationship with regard to those in the first connector (12).
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: September 5, 2000
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Edmond Choy, Caesar Chen
  • Patent number: D574328
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: August 5, 2008
    Inventors: Caesar Chen, Donald Chen, David Lin, Greg Fournier