Patent Assignment
Reel/Frame 021163/0791
Corrective Assignment to Correct the Application Serial Number, First Inventor Name, Second Assignee's Name, and Third Assignee's Address, Previously Recorded on Reel 015144 Frame 0814. Assignor(S) Hereby Confirms the Assignment to Hitachi, Ltd., Canon Kabushiki Kaisha and Advantest Corporation.
Recorded: 2008-06-27
Pages: 4
Assignors
SOHDA, YASUNARI
Executed: 2002-12-27
NAKAYAMA, YOSHINORI
Executed: 2002-12-25
KAMIMURA, OSAMU
Executed: 2002-12-27
MURAKI, MASATO
Executed: 2003-01-08
TAKAKUWA, MASAKI
Executed: 2002-12-27
Assignees
HITACHI, LTD.
6-6, MARUNOUCHI 1-CHOME, CHIYODA-KU, TOKYO, JAPAN
CANON KABUSHIKI KAISHA
3-30-2, SHIMOMARUKO, OHTA-KU, TOKYO, JAPAN
ADVANTEST CORPORATION
1-32-1, ASAHI-CHO, NERIMA-KU, TOKYO, JAPAN
Covered Property
(1)
Electron Beam Writing Equipment Using Plural Beams and Method
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.