Patents by Inventor Tze Hwei Tseeng

Tze Hwei Tseeng 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: 20230294398
    Abstract: An inkjet printing system with a droplet measurement apparatus is described herein. The droplet measurement apparatus has a light source with a collimating optical system, an imaging device disposed along an optical path of the collimating optical system, and a droplet illumination zone in the optical path of the collimating optical system, the droplet illumination zone having a varying droplet illumination location, wherein the light source, the imaging device, or both are adjustable to place a focal plane of the imaging device at the droplet illumination location. The droplet measurement apparatus is structured to accommodate at least a portion of a dispenser of the printing system within the droplet illumination zone.
    Type: Application
    Filed: May 25, 2023
    Publication date: September 21, 2023
    Applicant: Kateeva, Inc.
    Inventors: Eashwer Chandra Vidhya Sagar Kollata, Timothy Walter Dion, Tze Hwei Tseeng
  • Patent number: 11697284
    Abstract: An inkjet printing system with a droplet measurement apparatus is described herein. The droplet measurement apparatus has a light source with a collimating optical system, an imaging device disposed along an optical path of the collimating optical system, and a droplet illumination zone in the optical path of the collimating optical system, the droplet illumination zone having a varying droplet illumination location, wherein the light source, the imaging device, or both are adjustable to place a focal plane of the imaging device at the droplet illumination location. The droplet measurement apparatus is structured to accommodate at least a portion of a dispenser of the printing system within the droplet illumination zone.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: July 11, 2023
    Assignee: Kateeva, Inc.
    Inventors: Eashwer Chandra Vidhya Sagar Kollata, Timothy Walter Dion, Tze Hwei Tseeng
  • Publication number: 20220219448
    Abstract: An inkjet printing system with a droplet measurement apparatus is described herein. The droplet measurement apparatus has a light source with a collimating optical system, an imaging device disposed along an optical path of the collimating optical system, and a droplet illumination zone in the optical path of the collimating optical system, the droplet illumination zone having a varying droplet illumination location, wherein the light source, the imaging device, or both are adjustable to place a focal plane of the imaging device at the droplet illumination location. The droplet measurement apparatus is structured to accommodate at least a portion of a dispenser of the printing system within the droplet illumination zone.
    Type: Application
    Filed: April 1, 2022
    Publication date: July 14, 2022
    Applicant: Kateeva, Inc.
    Inventors: Eashwer Chandra Vidhya Sagar KOLLATA, Timothy Walter DION, Tze Hwei TSEENG
  • Patent number: 11318738
    Abstract: An inkjet printing system with a droplet measurement apparatus is described herein. The droplet measurement apparatus has a light source with a collimating optical system, an imaging device disposed along an optical path of the collimating optical system, and a droplet illumination zone in the optical path of the collimating optical system, the droplet illumination zone having a varying droplet illumination location, wherein the light source, the imaging device, or both are adjustable to place a focal plane of the imaging device at the droplet illumination location. The droplet measurement apparatus is structured to accommodate at least a portion of a dispenser of the printing system within the droplet illumination zone.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: May 3, 2022
    Assignee: KATEEVA, INC.
    Inventors: Eashwer Chandra Vidhya Sagar Kollata, Timothy Walter Dion, Tze Hwei Tseeng
  • Publication number: 20200198325
    Abstract: An inkjet printing system with a droplet measurement apparatus is described herein. The droplet measurement apparatus has a light source with a collimating optical system, an imaging device disposed along an optical path of the collimating optical system, and a droplet illumination zone in the optical path of the collimating optical system, the droplet illumination zone having a varying droplet illumination location, wherein the light source, the imaging device, or both are adjustable to place a focal plane of the imaging device at the droplet illumination location. The droplet measurement apparatus is structured to accommodate at least a portion of a dispenser of the printing system within the droplet illumination zone.
    Type: Application
    Filed: December 18, 2019
    Publication date: June 25, 2020
    Applicant: Kateeva, Inc.
    Inventors: Eashwer Chandra Vidhya Sagar Kollata, Timothy Walter Dion, Tze Hwei Tseeng
  • Patent number: 9493013
    Abstract: An inkjet ink set includes a black ink, a yellow ink, a cyan ink, and a magenta ink. The magenta ink includes an ink vehicle including a polyurethane binder, and a dispersed magenta pigment in the ink vehicle. The magenta pigment is chosen from Pigment Red 282.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: November 15, 2016
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xiaohe Chen, Pradeep Kumar Koyadan Kizhakkedath, Dennis P. Parazak, Keshava A. Prasad, Savka Ilieva Stoeva, Yi-Hua Tsao, Tze Hwei Tseeng, Ervin Mubarekyan
  • Publication number: 20130307914
    Abstract: An inkjet ink set includes a black ink, a yellow ink, a cyan ink, and a magenta ink. The magenta ink includes an ink vehicle including a polyurethane binder, and a dispersed magenta pigment in the ink vehicle. The magenta pigment is chosen from Pigment Red 282.
    Type: Application
    Filed: January 31, 2011
    Publication date: November 21, 2013
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Xiaohe Chen, Pradeep Kumar Koyadan Kizhakkedath, Dennis P. Parazak, Keshava A. Prasad, Savka Ilieva Stoeva, Yi-Hua Tsao, Tze Hwei Tseeng, Ervin Mubarekyan