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Pilot Man-nen-hitsu Kabushiki Kaisha

USPTO Granted Patents = 50

Trademarks = 6

Forward Citations = 770

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73 inventors (with patents filed for the assignee):

Yasuzo Murata (5 out of 9 patents)

Hiroshi Watanabe (4 out of 5 patents)

Sadao Tokorozawa (4 out of 4 patents)

4. Naomi Yoshizawa (4 out of 5 patents)

5. Noriatsu Tanaka (4 out of 5 patents)

6. Hiroshi Sato (4 out of 170 patents)

7. Tatsuya Igawa (3 out of 5 patents)

8. Masao Ito (3 out of 5 patents)

9. Akira Terashima (3 out of 4 patents)

10. Akio Ito (3 out of 3 patents)

11. Masashi Mizusawa (3 out of 3 patents)

12. Masao Abe (3 out of 3 patents)

13. Isao Shimamura (3 out of 3 patents)

14. Masahiko Ikeda (2 out of 7 patents)

15. Takeo Yokoyama (2 out of 6 patents)

Core Competencies:

Cobalt Base Alloy

Heat Transfer Medium

Ink Ribbon Cassette

Erasable Ink Composition

Magnetic Display Unit

Capillary Nibs

Liquid Discharge Apparatus

Fountain Pen Technology

Vibration Pickup Device

Electrolytic Treatment

Multiple-Point Writing Instruments

Dry Writing Board

50 patents: Sort by Forward Citations

1. 4863526 - Fine crystalline thin wire of cobalt base alloy and process for (1989-09-05),

2. 4840837 - Heat transfer medium (1989-06-20),

3. 4838715 - Ink ribbon cassette (1989-06-13),

4. 4760104 - Erasable ball-point pen ink (1988-07-26),

5. 4750003 - Magnetic display unit (1988-06-07),

6. 4707593 - Visible image magnetic card (1987-11-17),

7. 4669906 - Ball-point pen venting arrangement (1987-06-02),

8. 4659439 - Surface treatment of aluminum or aluminum alloys (1987-04-21),

9. 4646107 - XY plotter apparatus (1987-02-24),

10. 4643684 - Magnetic display panel (1987-02-17),

11. 4629748 - Erasable ball-point pen ink (1986-12-16),

12. 4606769 - Erasable black ink composition for ball-point pens (1986-08-19),

13. 4597829 - Stencil, stencil material kit and stencil duplicator kit containing the (1986-07-01),

14. 4596903 - Pickup device for picking up vibration transmitted through bones (1986-06-24),

15. 4569283 - Stencil material set and stencil duplicator set (1986-02-11),

Pilot Corporation, also known as Pilot Man-Nen-Hitsu Kabushiki Kaisha, is a Japanese multinational pen manufacturing company. Established in 1918, Pilot is renowned for producing high-quality writing instruments, including fountain pens, ballpoint pens, rollerball pens, and mechanical pencils. With a commitment to innovation and craftsmanship, Pilot has become one of the leading pen brands worldwide, known for its precise writing experience and advanced technologies. The company's dedication to quality and customer satisfaction has made it a trusted choice for professionals, students, and pen enthusiasts globally.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

50 Patents

#700 in Tokyo

#1,673 in Japan

#13,575 in the World

Pilot Man-nen-hitsu Kabushiki Kaisha

Forward Citations = 770

73 inventors:

Yasuzo Murata (5 out of 9 patents)

Hiroshi Watanabe (4 out of 5 patents)

Sadao Tokorozawa (4 out of 4 patents)

4. Naomi Yoshizawa (4 out of 5 patents)

5. Noriatsu Tanaka (4 out of 5 patents)

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