CIPO Patents = 1

Trademarks = 2

Forward Citations = 11

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13 inventors (with patents filed for the assignee):

Kazuya Kitasaka (2 out of 2 patents)

Shinji Hirose (1 out of 9 patents)

Reiko Iikawa (1 out of 1 patent)

4. Satoru Moriya (1 out of 1 patent)

5. Kazuhiro Umehara (1 out of 1 patent)

6. Ryota Nishioka (1 out of 1 patent)

7. Hatsumi Shimajiri (1 out of 1 patent)

8. Koichi Sugihara (1 out of 1 patent)

9. Takashi Harimoto (1 out of 1 patent)

10. Hajimu Kitahara (1 out of 2 patents)

11. Tadashi Doi (1 out of 6 patents)

12. Naobumi Oi (1 out of 6 patents)

13. Takashi Harimoto (0 patent)

4 patents: Sort by Forward Citations

1. 8733150 - Column and method of evaluation of contaminated condition of gas (2014-05-27),

2. 7241625 - Carbonyl compound scavenger and method of quantifying carbonyl compound using the same (2007-07-10),

3. 6436311 - Sampling material for a carbonyl compound in a gas (2002-08-20),

4. 4963254 - Packing material for chromatographic use (1990-10-16),

Sumika Chemical Analysis Service, Limited is a leading provider of chemical analysis services for a wide range of industries. With state-of-the-art equipment and a team of experienced professionals, we offer high-quality testing, analysis, and consultation services to help our clients ensure the safety and quality of their products. Our services include material testing, environmental analysis, and product development support. Visit our website for more information.

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USPTO Data Jan 1 1976 - Dec 9 2025

4 Patents

#708 in Osaka

#7,416 in Japan

Osaka, Japan

Sumika Chemical Analysis Service, Limited