Patents by Inventor Weijun Liu

Weijun Liu 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: 20230021464
    Abstract: A photocurable composition can comprise a polymerizable material, a fullerene or fullerene derivative in an amount of at least 0.2 wt % and not greater than 5.0 wt %, and a photoinitiator and may be adapted for AIP or NIL processing. A photo-cured layer made from the photocurable composition can have an improved thermal stability in comparison to a photo-cured layer made from the same photocurable composition except not containing a fullerene or fullerene derivative.
    Type: Application
    Filed: July 16, 2021
    Publication date: January 26, 2023
    Inventors: Fen WAN, Weijun LIU
  • Patent number: 11549020
    Abstract: A curable composition comprises at least 10 wt % expanding monomers based on a total weight of the curable composition, at least 25 wt % acrylate monomers based on the total weight of the curable composition, a photoinitiator, and a photosensitizer. The acrylate monomers have a molecular weight of 500 or less. The curable composition has a viscosity of 10 cP or less. A total amount of the expanding monomers and the acrylate monomers are at least 90 wt % based on the total weight of the curable composition.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: January 10, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Fen Wan, Weijun Liu
  • Publication number: 20220363807
    Abstract: In one embodiment, a photocurable composition can comprise a polymerizable material and a photoinitiator, wherein the polymerizable material includes an isocyanate group containing compound of formula (1): R1-R2-N?C?O (1), with R1 including a carbon-carbon double bond, and R2 being substituted or unsubstituted alkyl, aryl, or alkylaryl. An amount of 1 wt % to 10 wt % of the isocyanate group containing compound can cause a strong adhesion strength of the photocurable composition to a silicon substrate after curing, and may allow the omission of an adhesion layer between substrate and the photo-cured layer.
    Type: Application
    Filed: April 29, 2021
    Publication date: November 17, 2022
    Inventors: Fen WAN, Weijun LIU
  • Patent number: 11500375
    Abstract: The present disclosure provides a method and an apparatus for vehicle control. The method includes: obtaining (101) manual operation information of a vehicle; determining (102) an intervention intention of a driver based on the manual operation information; and controlling (103), when the vehicle is currently in an automated driving mode and the intervention intention is determined to be a slow intervention, the vehicle to reach a predetermined safe state and handing corresponding control of the vehicle over to the driver. The method and apparatus can solve potential safety problems in vehicle control and improve safety of the vehicle control.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: November 15, 2022
    Assignee: BEIJING TUSEN WEILAI TECHNOLOGY CO., LTD.
    Inventors: Qiyuan Liu, Nan Wu, Weijun Liu
  • Publication number: 20220297410
    Abstract: A laminate can contain a substrate, an adhesion promoter layer, and a coating layer, wherein the adhesion promoter layer may include an isocyanate group containing compound of formula (1): R1—R2—N?C?O (1), with R1 being a functional group different than the isocyanate group, and R2 being substituted or unsubstituted alkyl or aryl. The adhesion promoter layer can provide strong adhesion of the coating layer to the substrate by forming covalent bonds with the substrate and covalent bonds with the coating layer.
    Type: Application
    Filed: March 18, 2021
    Publication date: September 22, 2022
    Inventor: Weijun LIU
  • Patent number: 11434312
    Abstract: A photocurable composition can comprise a polymerizable material and a photo-initiator, wherein the polymerizable material can comprise at least one multi-functional vinylbenzene in an amount of 15 wt % to 85 wt % and at least one multi-functional acrylate monomer in an amount of 15 wt % to 85 wt % based on the total weight of the photocurable composition. A photo-cured layer of the photocurable composition can have a high heat stability up to 400° C. and a glass transition temperature of at least 135° C.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: September 6, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Fen Wan, Weijun Liu, Fei Li, Timothy Brian Stachowiak
  • Patent number: 11434313
    Abstract: A curable composition can comprise a polymerizable material and a photo-initiator, wherein the polymerizable material can comprise a first monomer including at least one bismaleimide-monomer and at least one second monomer. The curable composition can have a viscosity of not greater than 30 mPa·s, and a cured layer of the curable composition can have a high thermal stability up to 350° C.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: September 6, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Fei Li, Timothy Brian Stachowiak, Fen Wan, Weijun Liu
  • Publication number: 20220236640
    Abstract: A photocurable composition can comprise a polymerizable material, an organic ionic compound and a photoinitiator, wherein an amount of the organic ionic compound may be not greater than 1.5 wt %, the organic ionic compound comprises an organic cation, and a conductivity of the photocurable composition can be at least 20 ?S/cm. The photocurable composition can have an improved drop spreading and merging of drops in comparison to the same composition but not including the organic ionic compound.
    Type: Application
    Filed: January 28, 2021
    Publication date: July 28, 2022
    Inventors: Fen WAN, Weijun LIU
  • Publication number: 20220204659
    Abstract: A photocurable coraposition can comprise a polyme.aizable material and a photoinitiator, wherein the polymerizahle material can comprise at least one acrylate monomer including at least one cyano group (CN-acrylate monomer). The presence of a low amount of the CN-acrylate monomer between 10 wt% and not greater than 30 wt% can lower the contact angle of the composition and may improve the etch resistance of a photo-cured layer made from the photocurable composition.
    Type: Application
    Filed: December 29, 2020
    Publication date: June 30, 2022
    Inventors: Fen WAN, Weijun LIU
  • Publication number: 20220185915
    Abstract: A curable composition can comprise a polymerizable material and a photo-initiator, wherein the polymerizable material can comprise a first monomer including at least one bismaleimide-monomer and at least one second monomer. The curable composition can have a viscosity of not greater than 30 mPa·s, and a cured layer of the curable composition can have a high thermal stability up to 350° C.
    Type: Application
    Filed: December 16, 2020
    Publication date: June 16, 2022
    Inventors: Fei LI, Timothy Brian STACHOWIAK, Fen Wan, Weijun LIU
  • Publication number: 20220185914
    Abstract: A photocurable composition can comprise a polymerizable material and a photo-initiator, wherein the polymerizable material can comprise at least one multi-functional vinylbenzene in an amount of 15 wt % to 85 wt % and at least one multi-functional acrylate monomer in an amount of 15 wt % to 85 wt % based on the total weight of the photocurable composition. A photo-cured layer of the photocurable composition can have a high heat stability up to 400° C. and a glass transition temperature of at least 135° C.
    Type: Application
    Filed: December 15, 2020
    Publication date: June 16, 2022
    Inventors: Fen WAN, Weijun LIU, Fei LI, Timothy Brian STACHOWIAK
  • Patent number: 11345772
    Abstract: A curable composition can comprise a polymerizable material and an initiator. The polymerizable material can comprise a first monomer and a second monomer, wherein the second monomer is soluble in the first monomer, and the second monomer includes a ring structure selected from a maleimide ring, a pyrone ring, or a 2-furanone rings. The curable composition can have a viscosity of not greater than 10 mPa·s, a fast curing kinetic, low shrinkage during curing, and is suitable for use in inkjet adaptive planarization.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: May 31, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Fei Li, Weijun Liu
  • Publication number: 20220098345
    Abstract: A curable composition can comprise a polymerizable material including a monomer of Formula (1), with R being H or alkyl or alkylaryl, n being 1-4, m being 0-6, X1 being C1-C6 substituted or unsubstituted alkyl, X2 being CH3 or H, After forming a cured layer of the curable composition, the cured layer can have an excellent etch resistance.
    Type: Application
    Filed: September 30, 2020
    Publication date: March 31, 2022
    Inventors: Fen WAN, Weijun LIU, Gary F. DOYLE
  • Publication number: 20220066447
    Abstract: The present disclosure provides a method and an apparatus for vehicle control. The method includes: obtaining (101) manual operation information of a vehicle; determining (102) an intervention intention of a driver based on the manual operation information; and controlling (103), when the vehicle is currently in an automated driving mode and the intervention intention is determined to be a slow intervention, the vehicle to reach a predetermined safe state and handing corresponding control of the vehicle over to the driver. The method and apparatus can solve potential safety problems in vehicle control and improve safety of the vehicle control.
    Type: Application
    Filed: September 19, 2019
    Publication date: March 3, 2022
    Inventors: Qiyuan LIU, Nan WU, Weijun LIU
  • Patent number: 11261267
    Abstract: A photocurable composition can comprise a polymerizable material and a photoinitiator, wherein the polymerizable material can comprise 10-40 wt % of a mono-functional monomer of formula (1), with R1 being H or C1-C6 alkyl, and R2 and R3 being one or more substitutions of C1-C10 alkyl or alkyl-aryl, and R4, R5 being H or C1-C10 alkyl, The photocurable composition can have a viscosity of not greater than 15 mPa·s, and a photo-cured layer of the photocurable composition can have a low thermal shrinkage if subjected to a high temperature baking treatment, and a carbon content of at least 74%.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: March 1, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Fei Li, Weijun Liu
  • Publication number: 20220033665
    Abstract: A photocurable composition can comprise a polymerizable material and an initiator. The polymerizable material can include at least one first multi-functional monomer containing an allyloxymethyl methacrylate structure in an amount at least 5 wt % and not greater than 20 wt % based on the polymerizable material. The photocurable composition can be suitable for use in inkjet adaptive planarization and may be adapted to form cured layers having a glass transition temperature of at least 120° C.
    Type: Application
    Filed: July 31, 2020
    Publication date: February 3, 2022
    Inventors: Fei LI, Weijun LIU
  • Publication number: 20210305082
    Abstract: A superstrate can comprise a superstrate blank and a coating overlying an outer surface of the superstrate blank. The superstrate blank can comprises a central region and a tapered edge region, wherein the tapered edge region has an average taper angle of not greater than 20 degrees relative to a length direction of the superstrate blank. In one embodiment, the coating of the superstrate can be applied by spin coating and may have an edge bead below a plane of the coating surface within the central region.
    Type: Application
    Filed: March 30, 2020
    Publication date: September 30, 2021
    Inventors: Fen WAN, Weijun LIU
  • Publication number: 20210198400
    Abstract: A photocurable composition can comprise a polymerizable material and an initiator. The polymerizable material can comprise at least one 1,3-benzoxazine monomer and at least one acrylate monomer, and may have a viscosity of not greater than 20 mPa·s. The photocurable composition can be suitable for use in inkjet adaptive planarization and is adapted to form cured layers having exceptional heat stability up to 320° C.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 1, 2021
    Inventors: Fei LI, Weijun LIU
  • Patent number: 11045051
    Abstract: The present disclosure discloses a blade seat assembly including a blade assembly, a clasp assembly, and a blade seat. The blade assembly includes a blade and a shaft, the blade being connected to one end of the shaft. The blade seat defines a mounting groove, and the other end of the shaft detachably is connected to the mounting groove via the clasp assembly. The present disclosure also provides a blending cup assembly and a food processor, which use the blade seat assembly. The technical scheme of the present disclosure aims to enable the blade assembly to be disassembled.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: June 29, 2021
    Assignee: GUANGDONG MIDEA CONSUMER ELECTRICS MFG CO., LTD.
    Inventors: Lei Zhu, Jianfei Xu, Weijie Chen, Xianghe Zeng, Li Xiao, Weijun Liu, Yan She
  • Publication number: 20210126437
    Abstract: The present invention belongs to the technical field of mobile transformer substation, and in particular relates to a vehicle-mounted mobile transformer with a position-adjustable lead-out bushing.
    Type: Application
    Filed: April 6, 2020
    Publication date: April 29, 2021
    Inventors: Meijin GAO, Tingting WANG, Qian DI, Junhua YIN, Weijun LIU, Jianhua YANG, Huiwen ZHOU, Yanhan ZHU, Jiangqian HUANG, Jiarui YANG, Chu LI, Zhichao ZHOU, Xuejing KANG, Fangli JIA, Jicheng ZHANG, Chaowei QIAO, Jianyu LI, Xihui XIA