The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2008
Filed:
Jun. 03, 2005
Takao Ishiyama, Minamiashigara, JP;
Hiroshi Nakazawa, Minamiashigara, JP;
Masanobu Ninomiya, Minamiashigara, JP;
Hideo Maehata, Minamiashigara, JP;
Yutaka Sugizaki, Minamiashigara, JP;
Shinpei Takagi, Minamiashigara, JP;
Takao Ishiyama, Minamiashigara, JP;
Hiroshi Nakazawa, Minamiashigara, JP;
Masanobu Ninomiya, Minamiashigara, JP;
Hideo Maehata, Minamiashigara, JP;
Yutaka Sugizaki, Minamiashigara, JP;
Shinpei Takagi, Minamiashigara, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
An electrostatic latent image developing toner including, as a binder resin, a crystalline resin and at least one kind of non-crystalline resin, wherein, in a dynamic viscoelasticity measurement by a sine wave vibration method, a minimum value of the relaxation elasticity H in a relaxation spectrum obtained from frequency dispersion characteristics measured at temperatures of 60 and 80 degrees centigrade with a measurement frequency set in the range of 0.1 to 100 rad/sec and measurement strain set in the range of 0.02 to 4.5% is in the range of 10 to 900 Pa/cm, and a relaxation time λ corresponding to the minimum value is in the range of 1 to 10,000 sec.