Ricoh Company, Ltd.

IP Talk Corporation

Hiroki Morioka

Tetsuya Tanaka

Kaoru Aoki

Hiroaki Sakai

Masashi Mori

Shinya Hanatani

Masahiro Kawamoto

Kunio Nakaoka

Akihiko Naito

Akio Matsui

Yoshinari Sugegaya

Nobuhito Miyauchi

Kazuyoshi Kojima

Makoto Hirai

Shun Kimura

A classifying apparatus including: a rotor with a plurality of annularly disposed blades, which rotates; and a louver with a plurality of blades which are disposed at an outer circumferential portion of the rotor so as to supply from the outer circumferential portion a fluid for dispersing and classifying a powder material, wherein the powder material is supplied to a gap between the rotor and the louver and centrifugally classified into fine powder and coarse powder, and wherein at least one of the following relationships is satisfied: Relationship (1): &#x3b1;&#x2267;50&#xb0; Relationship (2): D/D&#x2267;1.17 where &#x3b1; denotes an angle formed between imaginary lines connecting the center of the rotor with both ends of each blade of the louver, Ddenotes a diameter of the rotor, and Ddenotes an inner diameter of the louver.

Classifying apparatus, classifying method, and method for producing toner

A fluid spray nozzle for spraying fluid, satisfying a formula (r&#x2212;r0)&#x2266;L tan 35&#xb0;, wherein r0 is a radius of a section having a minimum area of the nozzle when cut perpendicular to a spray direction of the fluid; and r is a radius of cross-sections of an upstream side and a downstream side of the spray direction from the section having a minimum area with a distance of L.

Fluid spray nozzle, pulverizer and method of preparing toner

An internet communication system, which is provided with session managing serversand. In the system, each session managing server manages wireless communication apparatusesandand call relay serversand. For that reason, the processing load of each session managing server is allowed to be equalized. As a result, the operational efficiency of the system may be enhanced, and quality of services offered to the user of the system may be improved.

Internet communication system, internet communication method, session management server, radio communication device, communication relay server, and program

Growing community of inventors

Shizuoka, Japan

Hiroki Morioka