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).
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Publication number: 20230294398Abstract: 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: ApplicationFiled: May 25, 2023Publication date: September 21, 2023Applicant: Kateeva, Inc.Inventors: Eashwer Chandra Vidhya Sagar Kollata, Timothy Walter Dion, Tze Hwei Tseeng
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Patent number: 11697284Abstract: 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: GrantFiled: April 1, 2022Date of Patent: July 11, 2023Assignee: Kateeva, Inc.Inventors: Eashwer Chandra Vidhya Sagar Kollata, Timothy Walter Dion, Tze Hwei Tseeng
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Publication number: 20220219448Abstract: 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: ApplicationFiled: April 1, 2022Publication date: July 14, 2022Applicant: Kateeva, Inc.Inventors: Eashwer Chandra Vidhya Sagar KOLLATA, Timothy Walter DION, Tze Hwei TSEENG
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Patent number: 11318738Abstract: 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: GrantFiled: December 18, 2019Date of Patent: May 3, 2022Assignee: KATEEVA, INC.Inventors: Eashwer Chandra Vidhya Sagar Kollata, Timothy Walter Dion, Tze Hwei Tseeng
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Publication number: 20200198325Abstract: 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: ApplicationFiled: December 18, 2019Publication date: June 25, 2020Applicant: Kateeva, Inc.Inventors: Eashwer Chandra Vidhya Sagar Kollata, Timothy Walter Dion, Tze Hwei Tseeng
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Patent number: 9493013Abstract: 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: GrantFiled: January 31, 2011Date of Patent: November 15, 2016Assignee: 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
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Publication number: 20130307914Abstract: 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: ApplicationFiled: January 31, 2011Publication date: November 21, 2013Applicant: 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