Inventor
ZENITANI YUKA
JP49 patents
⚠️ This page may combine multiple inventors who share the name “ZENITANI YUKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJI XEROX CO LTD
26 patentsUS9726998B1Aug 8, 2017
Electrostatic charge image developer, developer cartridge, and process cartridge
FUJI XEROX CO LTD9 citations84
US10538434B2Jan 21, 2020
Titanium oxide aerogel particle, photocatalyst forming composition, and photocatalyst
FUJI XEROX CO LTD4 citations73
US10100176B2Oct 16, 2018
Resin particle composition
FUJI XEROX CO LTD2 citations73
US10081718B2Sep 25, 2018
Resin particle composition
FUJI XEROX CO LTD2 citations73
US9394413B2Jul 19, 2016
Resin particle and method for producing the same
FUJI XEROX CO LTD3 citations72
US10025210B2Jul 17, 2018
Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge
FUJI XEROX CO LTD2 citations71
US10807070B2Oct 20, 2020
Silica titania composite aerogel particle, photocatalyst forming composition, and photocatalyst
FUJI XEROX CO LTD1 citations62
US10807058B2Oct 20, 2020
Silica-titania composite aerogel particle, photocatalyst-forming composition, and photocatalyst
FUJI XEROX CO LTD1 citations62
US10570020B2Feb 25, 2020
Silica particle and method of preparing silica particle
FUJI XEROX CO LTD0 citations52
US10563018B2Feb 18, 2020
Titanium oxide aerogel particle, photocatalyst-forming composition, and photocatalyst
FUJI XEROX CO LTD0 citations52
US10526493B2Jan 7, 2020
Silica composite particle and method for producing the same
FUJI XEROX CO LTD0 citations52
US10061216B2Aug 28, 2018
Electrostatic image developer and toner, electrostatic image developer and toner cartridge
FUJI XEROX CO LTD0 citations52
US9946178B2Apr 17, 2018
Toner for electrostatic image development, electrostatic image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
FUJI XEROX CO LTD0 citations52
US9904197B2Feb 27, 2018
Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge
FUJI XEROX CO LTD0 citations52
US9891543B2Feb 13, 2018
Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge
FUJI XEROX CO LTD0 citations52
US9885966B2Feb 6, 2018
Electrostatic charge image developing toner, electrostatic charge image developer and toner cartridge
FUJI XEROX CO LTD0 citations52
US9864287B2Jan 9, 2018
Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge
FUJI XEROX CO LTD0 citations52
US9835966B2Dec 5, 2017
Electrostatic charge image developer, developer cartridge, and process cartridge
FUJI XEROX CO LTD1 citations52
US9835963B2Dec 5, 2017
Magnetic one-component developer, developer cartridge, process cartridge, image forming apparatus, and image forming method
FUJI XEROX CO LTD0 citations52
US9726994B1Aug 8, 2017
Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge
FUJI XEROX CO LTD1 citations52
US9708191B2Jul 18, 2017
Silica composite particles and method of preparing the same
FUJI XEROX CO LTD0 citations52
US9910372B2Mar 6, 2018
Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge
FUJI XEROX CO LTD0 citations50
US8999617B2Apr 7, 2015
Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
FUJI XEROX CO LTD1 citations50
US9919930B2Mar 20, 2018
Silica particles and method of preparing the same
FUJI XEROX CO LTD0 citations42
US9785069B2Oct 10, 2017
Image forming apparatus, electrostatic charge image developer, and electrostatic charge image developing toner
FUJI XEROX CO LTD0 citations41
US9243145B2Jan 26, 2016
Silica composite particles and method of preparing the same
FUJI XEROX CO LTD0 citations39
FUJIFILM BUSINESS INNOVATION CORP
15 patentsUS12351467B2Jul 8, 2025
Silica particle and method for producing the same
FUJIFILM BUSINESS INNOVATION CORP0 citations62
US11866340B2Jan 9, 2024
Silica particle and method for producing the same
FUJIFILM BUSINESS INNOVATION CORP0 citations62
US11795302B2Oct 24, 2023
Resin particles and method for manufacturing resin particles
FUJIFILM BUSINESS INNOVATION CORP0 citations62
US11535756B2Dec 27, 2022
Method for producing silica composite particle
FUJIFILM BUSINESS INNOVATION CORP0 citations62
US11148951B2Oct 19, 2021
Silica-titania composite and structure
FUJIFILM BUSINESS INNOVATION CORP0 citations62
US11083200B2Aug 10, 2021
Plant protection agent
FUJIFILM BUSINESS INNOVATION CORP0 citations62
US11045797B2Jun 29, 2021
Filter
FUJIFILM BUSINESS INNOVATION CORP0 citations62
US12421396B2Sep 23, 2025
Silica particles and method for producing the same
FUJIFILM BUSINESS INNOVATION CORP0 citations61
US12287607B2Apr 29, 2025
Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
FUJIFILM BUSINESS INNOVATION CORP0 citations61
US12215033B2Feb 4, 2025
Silica particles comprising nitrogen element-containing compound containing molybdenum element
FUJIFILM BUSINESS INNOVATION CORP0 citations61
US12162769B2Dec 10, 2024
Silica particles and manufacturing method thereof
FUJIFILM BUSINESS INNOVATION CORP0 citations61
US12077443B2Sep 3, 2024
Silica particles and method for producing the same
FUJIFILM BUSINESS INNOVATION CORP0 citations61
US11535757B2Dec 27, 2022
Organic substance-attached porous inorganic oxide particle
FUJIFILM BUSINESS INNOVATION CORP0 citations51
US12455515B2Oct 28, 2025
Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
FUJIFILM BUSINESS INNOVATION CORP0 citations50
US11891544B2Feb 6, 2024
Pressure sensitive adhesive particles, method for producing printed material, and printed material
FUJIFILM BUSINESS INNOVATION CORP0 citations49
YOSHIKAWA HIDEAKI
3 patentsUS8431633B2Apr 30, 2013
Silica particles, manufacturing method thereof and resin particles
YOSHIKAWA HIDEAKI1 citations49
US9416015B2Aug 16, 2016
Method of producing silica particles
YOSHIKAWA HIDEAKI0 citations48
US9187502B2Nov 17, 2015
Silica particles and method for producing the same
YOSHIKAWA HIDEAKI0 citations38