Company Filing History:

9 out of 17

Teijin Petrochemical Industries, Ltd.

patents

Years Active: 1982-1995

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5430174 - Method for recovering dimethyl naphthalene-2,6-dicarboxylate (1995-07-04),

2. 5365001 - Method for preparing dialkylnaphthalene (1994-11-15),

3. 5329058 - Process for producing alkenylbenzene (1994-07-12),

4. 4954326 - Preparation of crystalline aluminosilicate zeolite, and its product (1990-09-04),

5. 4700012 - Process for isomerizing xylene (1987-10-13),

6. 4695667 - Novel crystalline aluminosilicate zeolites and process for production (1987-09-22),

7. 4557919 - Production of crystalline zeolites (1985-12-10),

8. 4524055 - Crystalline aluminosilicate zeolite and process for production thereof (1985-06-18),

9. 4485185 - Catalyst composition (1984-11-27),

10. 4377718 - Process for producing p-xylene (1983-03-22),

11. 4331822 - Isomerization of xylene (1982-05-25),

12. 4320242 - Process for selective dealkylation of alkyl-substituted aromatic (1982-03-16),

Title: Koji Sumitani: Shaping the Future of Technology through Innovation

Introduction:

Inventor Koji Sumitani, hailing from Matsuyama, JP, is a pioneering figure whose passion for innovation and unwavering commitment to excellence have left an indelible mark on the world of technology. With a remarkable 12 patents to his name, Sumitani's inventive spirit continues to inspire the next generation of inventors.

Latest Patents:

Among Koji Sumitani's latest patents is a groundbreaking method for recovering dimethyl naphthalene-2,6-dicarboxylate (DMN) from a mixture of dimethyl naphthalene-2,6-dicarboxylate and dimethyl terephthalate (DMT). This innovative process involves recrystallizing the mixture in a mixed medium of ethylene glycol and methanol, resulting in the high-yield recovery of DMN.

Career Highlights:

Sumitani's illustrious career has seen him contribute to renowned companies such as Teijin Petrochemical Industries, Ltd. and Teijin Limited, where his inventive prowess has been instrumental in driving technological advancements. His method for preparing dialkylnaphthalene stands as a testament to his expertise and innovative vision.

Collaborations:

Throughout his career, Koji Sumitani has collaborated with distinguished coworkers such as Tamio Onodera and Tokuji Sakai, pooling their collective knowledge and expertise to push the boundaries of technological innovation. These collaborations have not only led to the development of groundbreaking inventions but have also fostered a culture of creativity and excellence.

Conclusion:

In conclusion, Koji Sumitani's remarkable journey as an inventor exemplifies the transformative power of innovation and the impact that one individual can have on shaping the future of technology. His dedication to pushing the boundaries of what is possible serves as a source of inspiration for aspiring inventors worldwide, underscoring the importance of curiosity, perseverance, and a relentless pursuit of excellence in driving progress and innovation.

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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.