Company Filing History:

13 out of 28,544

Ricoh Company, Ltd.

patents

4 out of 27,375

Matsushita Electric Industrial Co., Ltd.

where one patent can have more than one assignee

Years Active: 1978-2008

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7378458 - Method for preparing ink, ink cartridge and ink-jet recording apparatus (2008-05-27),

2. 7368007 - Ink-jet recording ink, image forming method, ink-jet recording apparatus and imaged article (2008-05-06),

3. 7152968 - Image formation method (2006-12-26),

4. 6929686 - Ink composition for inkjet recording (2005-08-16),

5. 5089359 - Organic secondary battery (1992-02-18),

6. 4935319 - Organic secondary battery (1990-06-19),

7. 4497887 - Thermal development type diazo copying material with hydrophobic resin (1985-02-05),

8. 4486527 - Thermo-developable type diazo copying material with 2-naphthol coupler (1984-12-04),

9. 4467024 - Process for the production of thermo-developable type diazo copying (1984-08-21),

10. 4416967 - Diazo copying element (1983-11-22),

11. 4400456 - Thermo-developable type diazo copying material (1983-08-23),

12. 4304831 - Black-color forming two-component type diazo copying material (1981-12-08),

13. 4225662 - Diazo copying material (1980-09-30),

14. 4155762 - Liquid developer for binary diazo copying materials (1979-05-22),

15. 4119465 - Diazo copying material for secondary original (1978-10-10),

Title: The Innovative Journey of Tsutomu Matsuda

Introduction

Tsutomu Matsuda, an esteemed inventor based in Tokyo, Japan, has made significant contributions to the field of ink technology. With a remarkable portfolio of 15 patents, his innovative works have shaped the landscape of ink preparation and ink-jet recording systems.

Latest Patents

Matsuda's latest inventions focus on enhancing ink formulation and efficiency. One notable patent describes a method for preparing ink that includes water-soluble dyes featuring sulfonic or carboxyl groups, along with a unique mixture of water and condensation-polymerized substances. This method involves a systematic approach with distinct steps: mixing the dye and water-soluble substances, combining this mixture with additives, and adjusting the pH to ensure optimal performance. Another crucial patent covers an ink-jet recording ink that incorporates a chelate azo dye, moisturizer, and water, providing a pathway for innovative image forming methods and advanced recording apparatus.

Career Highlights

Throughout his career, Tsutomu Matsuda has worked with reputable companies such as Ricoh Company, Ltd. and Matsushita Electric Industrial Co., Ltd. His roles within these organizations allowed him to pioneer technologies that contribute significantly to the ink and printing industries.

Collaborations

Matsuda's journey had him collaborating with notable colleagues such as Mamoru Soga and Hidekazu Arase. These collaborations fostered an environment of creativity and innovation, enabling the development of cutting-edge technologies in their respective fields.

Conclusion

Tsutomu Matsuda's inventive spirit and technical expertise continue to influence the realm of ink technology. His patents not only showcase his innovative genius but also pave the way for future advancements in ink preparation and recording systems. Matsuda’s contributions stand as a testament to the power of innovation in everyday applications.

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