Company Filing History:

4 out of 42,485

Hitachi, Ltd.

patents

1 out of 1,641

Hitachi Chemical Company, Ltd.

patents

where one patent can have more than one assignee

Years Active: 1979-1989

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4801519 - Process for producing a pattern with negative-type photosensitive (1989-01-31),

2. 4366569 - Semiconductor laser device including an arrangement for preventing laser (1982-12-28),

3. 4270134 - Light-emitting semiconductor device (1981-05-26),

4. 4161701 - Semiconductor laser (1979-07-17),

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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.

For the Inventor, By the Inventor

Yutaka Takeda

Location History:

Company Filing History:

Years Active: 1979-1989