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:
Nov. 24, 1998
Filed:
Jun. 20, 1996
Kazukiyo Nagai, Numazu, JP;
Masaomi Sasaki, Susono, JP;
Hiroshi Tamura, Susono, JP;
Tetsuro Suzuki, Fuji, JP;
Tomoyuki Shimada, Sunto-gun, JP;
Chihaya Adachi, Numazu, JP;
Chiaki Tanaka, Tagata-gun, JP;
Nozomu Tamoto, Numazu, JP;
Kouji Kishida, Sunto-gun, JP;
Akira Katayama, Tagata-gun, JP;
Mitsutoshi Anzai, Ushiku, JP;
Akihiro Imai, Sagamihara, JP;
Ricoh Company, Ltd., Tokyo, JP;
Hodogaya Chemical Co., Ltd., Kawasaki, JP;
Abstract
An aromatic polycarbonate containing a structural unit of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group, Ar.sup.1 is a substituted or unsubstituted aryl group and Ar.sup.2 and Ar.sup.3 are independently a substituted or unsubstituted arylene group. The aromatic polycarbonate is capable of transferring charges and is used for forming a photosensitive layer of an electrophotographic photosensitive medium.