Inventor

Hirofumi Yoshimura

Inventor

Nara, JP

Overview

1976–2007

Patent span

Electricity

Primary field (CPC H)

Patents· 38 as inventor

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

H05Bprimary

H05BElectric heating40%

C22CAlloys12%

F24CDomestic stoves or ranges7%

C21DModifying the physical structure of ferrous metals5%

C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys5%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them5%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications5%

A23BPreservation of foods, foodstuffs or non-alcoholic beverages2%

B23KSoldering or unsoldering2%

C09KMaterials for miscellaneous applications, not provided for elsewhere2%

PatentTitleYear

7,282,683'High frequency heating apparatus'2007 7,022,958'High frequency heating apparatus'2006 6,974,936'High frequency heating apparatus'2005 6,894,260'High frequency heating apparatus'2005 6,657,172'High frequency heating apparatus equipped with oven hood'2003 6,114,677'Microwave heating apparatus having a metal plate rotatably disposed in a wave guide'2000 5,514,332'Titanium for conductor conduit in superconducting coil'1996 5,402,204'Camera'1995 5,371,343'Heating cooking device having a wave guide and feeder port disposed perpendicular to a rotary table'1994 5,367,009'Aqueous rosin emulsion and dispersant composition useful therein'1994 5,125,986'Process for preparing titanium and titanium alloy having fine acicular microstructure'1992 5,108,517'Process for preparing titanium and titanium alloy materials having a fine equiaxed microstructure'1992 5,092,940'Process for production of titanium and titanium alloy material having fine equiaxial microstructure'1992 4,694,151'Autofocusing zoom lens system with beam splitter prism for single lens reflex cameras'1987 4,568,811'High frequency heating unit with rotating waveguide'1986 4,515,644'Method for producing ferritic stainless steel sheets or strips containing aluminum'1985 4,508,946'Microwave oven with rotary antenna'1985 4,476,362'High frequency heating apparatus'1984 4,471,194'Electromagnetic energy seal for high frequency heating apparatus'1984 4,465,525'Ferritic stainless steel having excellent formability'1984 4,449,025'Door seal construction for high frequency heating appliance'1984 4,436,973'High frequency heating appliance with an antenna and stirrer assembly'1984 4,420,347'Process for producing an austenitic stainless steel sheet or strip'1983 4,373,971'Process for the production of ferritic stainless steel sheets or strips and products produced by said process'1983 4,371,769'Microwave heating apparatus'1983 4,347,420'Microwave seal structure in microwave oven'1982 4,327,267'High frequency energy supply in a high frequency heating appliance'1982 4,326,112'Microwave oven having a tubular L-shaped antenna'1982 4,324,967'Microwave heating apparatus having magnetic coupling for driving the antenna'1982 4,314,126'Microwave heating apparatus with cooling conduit'1982 4,304,974'Energy supply structure for combined resistance heater for H. F. heater oven'1981 4,191,877'Microwave oven equipped with electric heating arrangement'1980 4,121,078'Microwave heating apparatus'1978 4,017,711'Welding material for low temperature steels'1977 4,005,370'Power supply means for magnetron'1977 3,972,604'Sound-recording motion-picture camera'1976 3,960,612'Method for producing a low temperature high strength tough steel'1976 3,950,083'Fading audio-level controls for sound-recording motion picture cameras'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1996Patents assigned to NIPPON STEEL CORP (10)· patent assignee history

1976Patents assigned to YASHICA CO LTD (2)· patent assignee history

1976–1977Based in Kitakyushu, JP· patent location history

1977–2007Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (23)· patent assignee history

1977–2007Based in Nara, JP· patent location history

1983–1996Based in Hikari, JP· patent location history

1983–1984Based in Fukuoka, JP· patent location history

1987–1995Patents assigned to COSINA KK (2)· patent assignee history

1987–1995Based in Nakano-ku, JP· patent location history

1994Patents assigned to ARAKAWA CHEM IND (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	23	1977–2007
NIPPON STEEL CORP	10	1976–1996
COSINA KK	2	1987–1995
YASHICA CO LTD	2	1976
ARAKAWA CHEM IND	1	1994

Locations

Location	Patents	Span
Nara, JP	23	1977–2007
Hikari, JP	5	1983–1996
Nakano-ku, JP	2	1987–1995
Fukuoka, JP	2	1983–1984
Kitakyushu, JP	2	1976–1977