HK

Hiroyuki Kishida

Ricoh Company: 3 patents #48 of 689Top 7%
Overall (2025): #60,710 of 469,880Top 15%
3
Patents 2025

Issued Patents 2025

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12379678 Carrier for forming electrophotographic image, developer, image forming method, image forming apparatus, and process cartridge Namie Suzuki, Kousuke Suzuki, Tohru Suganuma, Masashi Nagayama, Minoru Masuda +2 more 2025-08-05
12372893 Carrier, developer, image forming method, and process cartridge Kaede Masuko, Tohru Suganuma, Minoru Masuda, Masashi Nagayama, Tomomi Suzuki +1 more 2025-07-29
12306582 Carrier for forming electrophotographic image, developer for forming electrophotographic image, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridge Masashi Nagayama, Kousuke Suzuki, Masahiro Seki, Namie Suzuki 2025-05-20