TH

Tomoe Hagiwara

Ricoh Company: 6 patents #3,275 of 9,818Top 35%
Overall (All Time): #889,165 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5519316 Method and apparatus for measuring a toner concentration of a two-component developer Mitsuo Aoki, Masanori Suzuki, Tomio Kondou, Takahisa Kato 1996-05-21
5482807 Positively-chargeable toner Mitsuo Aoki, Takahisa Kato, Masanori Suzuki 1996-01-09
5474869 Toner and method of developing Masami Tomita, Kohichi Katoh, Koji Suzuki, Shigekazu Enoki, Naoki Iwata +2 more 1995-12-12
5370959 Image formation method Shinichi Kuramoto, Motoi Orihara 1994-12-06
5244765 Toner for developing latent electrostatic images Koichi Katoh, Masami Tomita 1993-09-14
5164774 Developing device of the type forming thin layer of toner on toner conveying member, and dry color toner of one component type used therein Masami Tomita, Hachiro Tosaka, Motoi Orihara, Hiroshi Tanaka 1992-11-17