Patents by Inventor Rongjun Zhang

Rongjun Zhang 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: 11309209
    Abstract: A wafer holder and a wafer transfer apparatus, system and method are disclosed. The wafer holder is mounted onto the wafer transfer apparatus and includes a holder body and a sucker. The holder body defines a first opening, while the sucker includes a first skirt. The first skirt is located on one side of the holder body and connected to the first opening. A groove is formed at a joint between the first skirt and the first opening. The groove is located at an outer side of the first skirt, and is able to relief stresses produced at a base portion of the sucker during deformation of the first skirt.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: April 19, 2022
    Assignee: Shanghai Micro Electronics Equipment (Group) Co., Ltd.
    Inventors: Gang Wang, Rongjun Zhang, Xiaoyu Jiang, Yichao Shi, Kai Liu, Junpeng Chen
  • Patent number: 11299139
    Abstract: A drive train for a vehicle includes a first electromagnetic device, a second electromagnetic device electrically coupled to the first electromagnetic device by an electrical power transmission system, and an engine coupled to the first electromagnetic device and configured to drive the first electromagnetic device to provide electrical energy. In all modes of operation where the engine drives the first electromagnetic device to provide the electrical energy, the first electromagnetic device operates without providing the electrical energy to an energy storage device.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: April 12, 2022
    Assignee: Oshkosh Defense, LLC
    Inventors: Deepak Shukla, Rongjun Zhang, Nader Nasr
  • Patent number: 11293803
    Abstract: The present invention discloses a coma-elimination broadband high-resolution spectrograph, comprising incident slits, a collimating mirror, an integrated grating, a two-dimensional focus imaging mirror and a two-dimensional area array detector, wherein the incident slits enters along the incident slits, passes through a light through hole in the center of the integrated grating and is incident to the collimating mirror, the incident light enters the integrated grating along a coaxial optical path L1 after collimation of the collimating mirror and is focused by the two-dimensional focus imaging mirror after diffraction of each sub-grating, diffraction light in full spectrum region enters a focal plane of the two-dimensional area array detector for detection along an coaxial optical path L2, and off-axis angles of the L1 and the L2 are zero.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: April 5, 2022
    Inventors: Liangyao Chen, Songyou Wang, Haibin Zhao, Yuxiang Zheng, Rongjun Zhang, Yuemei Yang, Jianke Chen, Anqing Jiang
  • Patent number: 11268853
    Abstract: The present invention discloses a multichannel broadband high-resolution spectrograph, comprising a plurality of light source incident slits, a multichannel integrated grating, a multichannel shared two-dimensional focus imaging mirror and a two-dimensional area array detector which are sequentially disposed along a light source incident or reflection line, wherein the multichannel integrated grating consists of a plurality of sub-gratings, incident light enters the corresponding integrated gratings along the light source incident slits and then is focused by the shared two-dimensional focus imaging mirror after diffraction of the integrated grating, and diffraction light in a full-spectrum region is incident onto a focal plane of the two-dimensional area array detector for detection. No any mechanical displacement part is disposed, multichannel, full-spectrum and high-speed detection and analysis is achieved, and the present disclosure has high spectrum resolution and working reliability.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: March 8, 2022
    Inventors: Liangyao Chen, Songyou Wang, Haibin Zhao, Yuxiang Zheng, Rongjun Zhang, Yuemei Yang, Jianke Chen, Anqing Jiang
  • Publication number: 20220017063
    Abstract: A drive train for a vehicle includes a first electromagnetic device, a second electromagnetic device electrically coupled to the first electromagnetic device by an electrical power transmission system, and an engine coupled to the first electromagnetic device and configured to drive the first electromagnetic device to provide electrical energy. In all modes of operation where the engine drives the first electromagnetic device to provide the electrical energy, the first electromagnetic device operates without providing the electrical energy to an energy storage device.
    Type: Application
    Filed: October 1, 2021
    Publication date: January 20, 2022
    Applicant: Oshkosh Defense, LLC
    Inventors: Deepak Shukla, Rongjun Zhang, Nader Nasr
  • Publication number: 20210354329
    Abstract: A drum drive system includes a controller configured to selectively control an engine, a variable displacement pump, and a variable displacement motor of a vehicle to provide a target drum speed for a drum of the vehicle. To provide the target drum speed, the controller is configured to: (i) initially operate the variable displacement motor at a maximum motor displacement and operate the variable displacement pump at a pump displacement that provides the target drum speed without needing to actively manipulate an engine speed of the engine; (ii) increase the pump displacement and decrease a motor displacement without needing to actively manipulate the engine speed while still providing the target drum speed; and (iii) increase the engine speed in response to the pump displacement reaching a maximum pump displacement and the motor displacement reaching a minimum motor displacement if necessary to maintain the target drum speed.
    Type: Application
    Filed: July 29, 2021
    Publication date: November 18, 2021
    Applicant: Oshkosh Corporation
    Inventors: Yanming Hou, Loren G. DeVries, Rongjun Zhang, Jeremy Andringa
  • Patent number: 11106143
    Abstract: A mask fork, configured to transfer a mask from a standard mechanical interface pod. The standard mechanical interface pod includes a plurality of supports having a L-shaped cross section. Each of the plurality of supports includes a connecting section extending horizontally and a supporting section extending vertically, and the connecting section has a bottom to which a limiting section is fixed. The mask fork includes a fork body and two tines connected to the fork body in symmetry with each other. Each of the tines comprises a transfer member configured to support the mask during a transfer of the mask and anti-collision members including a first anti-collision member extending horizontally and a second anti-collision member extending vertically. The first anti-collision member is horizontally attached to a side of the transfer member facing away from the mask.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: August 31, 2021
    Assignee: SHANGHAI MICRO ELECTRONICS EQUIPMENT (GROUP) CO., LTD.
    Inventors: Gang Wang, Rongjun Zhang, Dongliang Huang
  • Patent number: 11104035
    Abstract: A vehicle includes an engine, a drum, a drum drive system, and a control system coupled to the engine and the drum drive system. The drum drive system includes a pump and a motor. The pump is mechanically coupled to the engine and configured to pump a fluid through a hydraulic system. The pump has a variable pump displacement. The motor is fluidly coupled to the pump by the hydraulic system and positioned to drive the drum to agitate the drum contents. The motor has a variable motor displacement. The control system is configured to receive pressure data indicative of a pressure of the fluid within the hydraulic system, reduce the variable motor displacement in response to the pressure of the fluid being less than a threshold system pressure, and reduce a speed of the engine based on the reduction of the variable motor displacement.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: August 31, 2021
    Assignee: Oshkosh Corporation
    Inventors: Yanming Hou, Loren G. DeVries, Rongjun Zhang, Jeremy Andringa
  • Patent number: 11052899
    Abstract: A vehicle drive includes a gear set, a first motor/generator coupled to the gear set, a second motor/generator at least selectively rotationally engaged with the gear set, and an engine at least selectively coupled to the gear set and at least selectively coupled to the second motor/generator. The second motor/generator is electrically coupled to the first motor/generator by an electrical power transmission system. The first motor/generator and the second motor/generator are electrically coupled without an energy storage device configured to at least one of (a) provide electrical energy to the first motor/generator or the second motor/generator to power the first motor/generator or the second motor/generator and (b) be charged by electrical energy from the first motor/generator or the second motor/generator.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: July 6, 2021
    Assignee: Oshkosh Defense, LLC
    Inventors: Deepak Shukla, Rongjun Zhang, Nader Nasr
  • Patent number: 10908497
    Abstract: A reticle cassette includes a bottom panel, a frame arranged on the bottom panel, and a top cover arranged on the frame, the bottom panel, the frame and the top cover defining a chamber with an opening, the reticle cassette further providing a door panel at one side of the opening. The bottom panel is provided thereon with a plurality of reticle supporting posts each separated from the frame by a lateral gap, and the frame has a longitudinal cross-section comprising H-shaped structures. A web and a bottom surface of the first vertical wall are separated from the bottom panel by vertical gaps. The gaps are arranged between the reticle supporting posts and the frame so as to make the reticle cassette suitable for use with both vacuum suction type and physical clamping type handling forks to pick up the reticle.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: February 2, 2021
    Assignee: SHANGHAI MICRO ELECTRONICS EQUIPMENT (GROUP) CO., LTD.
    Inventors: Gang Wang, Rongjun Zhang, Dongliang Huang
  • Publication number: 20200356014
    Abstract: A mask transfer system and transfer method, including an inner mask store (1) used for storing masks, a rotating mechanical arm used for moving the masks, and a mask fork (3) connected to the rotating mechanical arm and used for picking up the masks. The rotating mechanical arm is provided with a micro-adjustment piece (4) used for coordinating with the rotating mechanical arm to compensate position deviations of the masks picked up by the mask fork, so as to implement mask pre-alignment. The mask transfer system and transfer method achieve the effect of being low in cost.
    Type: Application
    Filed: August 17, 2018
    Publication date: November 12, 2020
    Inventors: Gang WANG, Dongliang HUANG, Rongjun ZHANG
  • Publication number: 20200348172
    Abstract: The present invention discloses a multichannel broadband high-resolution spectrograph, comprising a plurality of light source incident slits, a multichannel integrated grating, a multichannel shared two-dimensional focus imaging mirror and a two-dimensional area array detector which are sequentially disposed along a light source incident or reflection line, wherein the multichannel integrated grating consists of a plurality of sub-gratings, incident light enters the corresponding integrated gratings along the light source incident slits and then is focused by the shared two-dimensional focus imaging mirror after diffraction of the integrated grating, and diffraction light in a full-spectrum region is incident onto a focal plane of the two-dimensional area array detector for detection. No any mechanical displacement part is disposed, multichannel, full-spectrum and high-speed detection and analysis is achieved, and the present disclosure has high spectrum resolution and working reliability.
    Type: Application
    Filed: July 20, 2020
    Publication date: November 5, 2020
    Inventors: Liangyao Chen, Songyou Wang, Haibin Zhao, Yuxiang Zheng, Rongjun Zhang, Yuemei Yang, Jianke Chen, Anqing Jiang
  • Publication number: 20200348174
    Abstract: The present invention discloses a coma-elimination broadband high-resolution spectrograph, comprising incident slits, a collimating mirror, an integrated grating, a two-dimensional focus imaging mirror and a two-dimensional area array detector, wherein the incident slits enters along the incident slits, passes through a light through hole in the center of the integrated grating and is incident to the collimating mirror, the incident light enters the integrated grating along a coaxial optical path L1 after collimation of the collimating mirror and is focused by the two-dimensional focus imaging mirror after diffraction of each sub-grating, diffraction light in full spectrum region enters a focal plane of the two-dimensional area array detector for detection along an coaxial optical path L2, and off-axis angles of the L1 and the L2 are zero.
    Type: Application
    Filed: July 20, 2020
    Publication date: November 5, 2020
    Inventors: Liangyao Chen, Songyou Wang, Haibin Zhao, Yuxiang Zheng, Rongjun Zhang, Yuemei Yang, Jianke Chen, Anqing Jiang
  • Publication number: 20200286772
    Abstract: A wafer holder and a wafer transfer apparatus, system and method are disclosed. The wafer holder is mounted onto the wafer transfer apparatus and includes a holder body and a sucker. The holder body defines a first opening, while the sucker includes a first skirt. The first skirt is located on one side of the holder body and connected to the first opening. A groove is formed at a joint between the first skirt and the first opening. The groove is located at an outer side of the first skirt, and is able to relief stresses produced at a base portion of the sucker during deformation of the first skirt.
    Type: Application
    Filed: March 29, 2018
    Publication date: September 10, 2020
    Inventors: Gang WANG, Rongjun ZHANG, Xiaoyu JIANG, Yichao SHI, Kai LIU, Junpeng CHEN
  • Publication number: 20200201195
    Abstract: A mask fork, configured to transfer a mask from a standard mechanical interface pod, wherein the standard mechanical interface pod comprises a plurality of supports having an L-shaped cross section, each of the plurality of supports includes a connecting section extending horizontally and a supporting section extending vertically, and the connecting section has a bottom to which a limiting section is fixed, wherein the mask fork includes a fork body and two tines connected to the fork body in symmetry with each other, each of the tines includes a transfer member configured to support the mask during a transfer of the mask and anti-collision members including a first anti-collision member extending horizontally and a second anti-collision member extending vertically, the first anti-collision member is horizontally attached to a side of the transfer member facing away from the mask, the first anti-collision member is connected between the transfer member and the second anti-collision member, when the mask fork
    Type: Application
    Filed: July 17, 2018
    Publication date: June 25, 2020
    Inventors: Gang WANG, Rongjun ZHANG, Dongliang HUANG
  • Publication number: 20200117079
    Abstract: A reticle cassette includes a bottom panel (1), a frame (2) arranged on the bottom panel (1), and a top cover (3) arranged on the frame (2), the bottom panel, the frame and the top cover defining a chamber with an opening, the reticle cassette further providing a door panel (4) at one side of the opening. The bottom panel (1) is provided thereon with a plurality of reticle supporting posts each separated from the frame (2) by a lateral gap, and the frame (2) has a longitudinal cross-section comprising H-shaped structures. A web (21) and a bottom surface of the first vertical wall (22) are separated from the bottom panel (1) by vertical gaps. The gaps are arranged between the reticle supporting posts and the frame (2) so as to make the reticle cassette suitable for use with both vacuum suction type and physical clamping type handling forks to pick up the reticle.
    Type: Application
    Filed: November 15, 2017
    Publication date: April 16, 2020
    Inventors: Gang WANG, Rongjun ZHANG, Dongliang HUANG
  • Publication number: 20190381990
    Abstract: A vehicle drive includes a gear set, a first motor/generator coupled to the gear set, a second motor/generator at least selectively rotationally engaged with the gear set, and an engine at least selectively coupled to the gear set and at least selectively coupled to the second motor/generator. The second motor/generator is electrically coupled to the first motor/generator by an electrical power transmission system. The first motor/generator and the second motor/generator are electrically coupled without an energy storage device configured to at least one of (a) provide electrical energy to the first motor/generator or the second motor/generator to power the first motor/generator or the second motor/generator and (b) be charged by electrical energy from the first motor/generator or the second motor/generator.
    Type: Application
    Filed: August 22, 2019
    Publication date: December 19, 2019
    Applicant: Oshkosh Defense, LLC
    Inventors: Deepak Shukla, Rongjun Zhang, Nader Nasr
  • Publication number: 20190292975
    Abstract: A vehicle includes a chassis, tractive elements configured to support the chassis, a primary driver configured to output mechanical energy to at least one of the tractive elements to drive the vehicle, a coolant circuit, a fan assembly, and a controller. The coolant circuit includes a thermal energy interface configured to transfer thermal energy from the primary driver to coolant and a radiator configured to receive the coolant. The fan assembly includes a hydraulic pump coupled to the primary driver, a hydraulic motor fluidly coupled to the hydraulic pump, a fan coupled to the hydraulic motor and configured to provide air flow to the radiator, and an actuator configured to vary a displacement of at least one of the hydraulic pump and the hydraulic motor. The controller is configured to control the actuator to vary a speed of the fan based on telematics data.
    Type: Application
    Filed: March 19, 2019
    Publication date: September 26, 2019
    Applicant: Oshkosh Corporation
    Inventors: Yanming Hou, Loren G. DeVries, Rongjun Zhang
  • Publication number: 20190291711
    Abstract: A method of operating a first electric machine and a second electric machine in a vehicle drive includes operating the vehicle drive in a first operating mode by operating the first electric machine to regulate electrical power at a bus to maintain a first voltage on the bus and operating the second electric machine to consume electrical power from the bus. The method includes operating the vehicle drive in a second operating mode by operating the first electric machine to consume electrical power from the bus and operating the second electric machine to regulate electrical power at the bus to maintain a second voltage on the bus. A sum of the electrical power regulated by the first electric machine, the electrical power losses, and the electrical power consumed by the second electric machine is zero in the first operating mode and in the second operating mode.
    Type: Application
    Filed: June 7, 2019
    Publication date: September 26, 2019
    Applicant: Oshkosh Defense, LLC
    Inventors: Deepak Shukla, Rongjun Zhang, Nader Nasr
  • Patent number: 10392000
    Abstract: A vehicle drive includes a gear set, a first motor/generator coupled to the gear set, a second motor/generator at least selectively rotationally engaged with the gear set, an engine at least selectively coupled to the gear set and selectively coupled to the second motor/generator, and a clutch configured to selectively engage the second motor/generator to the engine. The first motor/generator and the second motor/generator are electrically coupled without an energy storage device configured to at least one of (a) provide electrical energy to the first motor/generator or the second motor/generator to power the first motor/generator or the second motor/generator and (b) be charged by electrical energy from the first motor/generator or the second motor/generator.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: August 27, 2019
    Assignee: Oshkosh Defense, LLC
    Inventors: Deepak Shukla, Rongjun Zhang, Nader Nasr