IP Library › Assignment 013278/0115
Patent Assignment
Reel/Frame 013278/0115

Assignment of Assignor's Interest

Recorded: 2002-09-09 Pages: 3
Assignors
YAMAMOTO, CHIKARA
Executed: 2002-09-06
SHIRAYANAGI, MORIYASU
Executed: 2002-09-06
Assignee
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
36-9, MAENOCHO 2-CHOME, ITABASHI-KU, TOKYO, JAPAN
Covered Property (1)
Method of Manufacturing Progressive Power Spectacle Lens
Patent: 6,948,816 →
Application: 10/237,071 →
Publication: US 2003/0048408
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name Jul 13, 2005
From: ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
To: PENTAX CORPORATION
Reel/Frame 016770/0882 →
Assignment of Assignor's Interest Oct 16, 2008
From: PENTAX CORPORATION
To: SEIKO OPTICAL PRODUCTS KABUSHIKI KAISHA (TRADING AS SEIKO OPTICAL PRODUCTS CO., LTD.)
Reel/Frame 021691/0025 →
Assignment of Assignor's Interest Dec 22, 2016
From: SEIKO OPTICAL PRODUCTS CO.,LTD.
To: HOYA LENS THAILAND LTD.
Reel/Frame 040741/0245 →
Change of Address Dec 22, 2016
From: SEIKO OPTICAL PRODUCTS CO.,LTD.
To: SEIKO OPTICAL PRODUCTS CO.,LTD.
Reel/Frame 041174/0192 →