Company Filing History:

5 out of 42,485

Hitachi, Ltd.

patents

1 out of 77

Director-general of the Agency of Industrial Science and Technology

patents

Years Active: 1987-2002

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6478977 - Polishing method and apparatus (2002-11-12),

2. 6180020 - Polishing method and apparatus (2001-01-30),

3. 5815396 - Vacuum processing device and film forming device and method using same (1998-09-29),

4. 5707500 - Vacuum processing equipment, film coating equipment and deposition method (1998-01-13),

5. 4721535 - Solar cell (1988-01-26),

6. 4642412 - Photo-electronic conversion apparatus with light pattern discriminator (1987-02-10),

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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

Sunao Matsubara

Location History:

Company Filing History:

Years Active: 1987-2002