LexDanaLexDanabeta
Inventor

Hisashi Naoi

Inventor
Futtsu, JP

Overview

8→
Patents
1993–1998
Patent span
Chemistry
Primary field (CPC C)

Patents· 8 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C22Cprimary
C22CAlloys46%
B23KSoldering or unsoldering15%
Y10TTechnical subjects covered by former us classification15%
C21DModifying the physical structure of ferrous metals8%
F16LPipes8%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application8%
PatentTitleYear
5,772,956'High strength, ferritic heat-resistant steel having improved resistance to intermetallic compound precipitation-induced embrittlement'19985,766,376'High-strength ferritic heat-resistant steel and method of producing the same'19985,759,300'Liquid-phase diffusion bonding alloy foils for joining heat-resistant metals in oxidizing atmospheres'19985,683,822'Liquid-phase diffusion bonding alloy foils for joining heat-resistant metals in oxidizing atmospheres'19975,650,024'Martensitic heat-resisting steel excellent in HAZ-softening resistance and process for producing the same'19975,339,868'Bent pipe having sectional form of high strength'19945,268,142'High-nitrogen ferritic heat-resisting steel with high vanadium content and method of production thereof'19935,254,307'High-nitrogen ferritic heat-resisting steel with high niobium content and method of production thereof'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–1998Patents assigned to NIPPON STEEL CORP (8)· patent assignee history
1993Patents assigned to MITSUBISHI HEAVY IND LTD (2)· patent assignee history
1993Based in Kanagawa, JP· patent location history
1994Based in Sagamihara, JP· patent location history
1997–1998Patents assigned to FUJITA TOSHIO (2)· patent assignee history
1997–1998Based in Futtsu, JP· patent location history
1998Patents assigned to BABCOCK HITACHI KK (1)· patent assignee history
1998Based in Chiba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON STEEL CORP81993–1998
FUJITA TOSHIO21997–1998
MITSUBISHI HEAVY IND LTD21993
BABCOCK HITACHI KK11998
Locations
LocationPatentsSpan
Futtsu, JP41997–1998
Kanagawa, JP21993
Chiba, JP11998
Sagamihara, JP11994