Granted Patent
Utility
US 5,904,501 · App. 08/824,459
Hollow package manufacturing method
Inventors:
Masatoshi Ohara, Takeo Ogihara, Satoshi Murata, Kenji Uchida, Tsutomu Kubota, Seiji Ichikawa, Tomoaki Hirokawa, Tomoaki Kimura, Taku Sato, Junichi Tanaka
Patented Case
View Patent ↗
Granted: May 18, 1999
Filed: Mar 26, 1997
Inventors
Masatoshi Ohara
Takeo Ogihara
Satoshi Murata
Kenji Uchida
Tsutomu Kubota
Seiji Ichikawa
Tomoaki Hirokawa
Tomoaki Kimura
Taku Sato
Junichi Tanaka
Assignee (at issue)
NEC CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.