Fumio Tomizawa

This inventor holds 5 USPTO granted patents. Top assignees: Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Kawasaki Seitetsu Kabushiki Kaisha. Active years: 1980-1987.

USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 2.1

ph-index = 4

Forward Citations = 32(Granted Patents)

Company Filing History:

5 out of 306

Ishikawajima-Harima Jukogyo Kabushiki Kaisha

patents

1 out of 7

Kawasaki Seitetsu Kabushiki Kaisha

patents

where one patent can have more than one assignee

Years Active: 1980-1987

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5 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4694465 - Apparatus for automatically charging scrap into an arc furnace (1987-09-15),

2. 4638487 - Shroud for arc furnace (1987-01-20),

3. 4434495 - Cooling pipe structure for arc furnace (1984-02-28),

4. 4395023 - Shroud for steel making electric-arc furnace (1983-07-26),

5. 4224056 - Direct reduction process for iron ores with fluidized bed system (1980-09-23),

Profile summary based on public USPTO records.

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