Inventor

Eizo Isoyama

Inventor

Nara, JP

Overview

10→

Patents

1984–2000

Patent span

Chemistry

Primary field (CPC C)

Patents· 10 as inventor

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

H01Gprimary

H01GCapacitors20%

C23CCoating metallic material15%

Y10TTechnical subjects covered by former us classification15%

B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling10%

C25FProcesses for the electrolytic removal of materials from objects10%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry5%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form5%

C04BLime, magnesia5%

F05CIndexing scheme relating to materials, material properties or material characteristics for machines, engines or pumps other than non-positive-displacement machines or engines5%

F16JPistons5%

PatentTitleYear

6,038,124'Aluminum electrode foil for electrolytic capacitor and electrolytic capacitor using the foil'2000 5,714,271'Electrolytic condenser electrode and aluminum foil therefor'1998 5,518,823'Aluminum foil as electrolytic condenser electrodes'1996 4,957,159'Aluminum heat exchanger provided with fins having hydrophilic coating'1990 4,860,565'Process for preparing hollow aluminum extrudates for use in vacuum'1989 4,828,937'Process for producing hollow extrudate for use in vacuum'1989 4,615,747'Process for producing aluminum material for use in vacuum'1986 4,588,025'Aluminum heat exchanger provided with fins having hydrophilic coating'1986 4,547,275'Process for treating surface of aluminum foil for use as electrode of electrolytic capacitors'1985 4,462,842'Surface treatment process for imparting hydrophilic properties to aluminum articles'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–2000Patents assigned to SHOWA ALUMINUM CORP (8)· patent assignee history

1984–1990Based in Sakai, JP· patent location history

1985Patents assigned to SHOWA ALUMINIUM CO LTD (1)· patent assignee history

1985Based in Saishi, JP· patent location history

1986–2000Based in Nara, JP· patent location history

1996Patents assigned to SHOWA ALUMINUM KABUSHIKI (1)· patent assignee history

2000Patents assigned to KYOTO DAIICHI KAGAKU KK (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SHOWA ALUMINUM CORP	8	1984–2000
KYOTO DAIICHI KAGAKU KK	1	2000
SHOWA ALUMINIUM CO LTD	1	1985
SHOWA ALUMINUM KABUSHIKI	1	1996

Locations

Location	Patents	Span
Nara, JP	5	1986–2000
Sakai, JP	4	1984–1990
Saishi, JP	1	1985