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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
TAISEI CORPORATION	TOKYO 163-0606
ISHIKAWAJIMA-HARIMA JUKOGYO KABUSHIKI KAISHA	NO 2-1 2-CHOME OTE-MACHI CHIYODA-KU TOKYO-TO

International Classification(s)

• Non-US Classification not provided for expired patents

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Bessho, Toshihiko	Tokyo, JP	7	59
Ino, Toshimi	Higashikurume, JP	1	3
Ito, Hiroyuki	Kuwana, JP	540	5295
Kaneko, Kenichi	Kokubunji, JP	28	210
Uehara, Toshiaki	Yachiyo, JP	4	49

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent No: 5051032

Method and apparatus for continuously excavating shaft and tunnel

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