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For the Inventor, By the Inventor

Ibaraki, Japan

Masamichi Tsukada

USPTO Granted Patents = 15

Average Co-Inventor Count = 3.4

ph-index = 7

Forward Citations = 141(Granted Patents)


Location History:

  • Ibaragi, JP (1990)
  • Minori, JP (1992 - 1993)
  • Ibaraki, JP (1985 - 1994)
  • Higashi, JP (1997)
  • Minori-machi, JP (1998)
  • Higashiibaraki-gun, JP (1998 - 2002)

Company Filing History:

goldMedal15 out of 42,485 
 
Hitachi, Ltd.
 patents

Years Active: 1985-2002

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15 patents (USPTO):Explore Patents
1. 6423965 - Mass spectrometer (2002-07-23),
2. 6248998 - Plasma ion source mass spectrometer (2001-06-19),
3. 5793039 - Mass spectrometer, skimmer cone assembly, skimmer cone and its (1998-08-11),
4. 5763877 - Analyzer using plasma and analysis method using plasma, interface used (1998-06-09),
5. 5616918 - Plasma ion mass spectrometer and plasma mass spectrometry using the same (1997-04-01),
6. 5283624 - Multi-element simultaneous analysis atomic absorption spectroscopy (1994-02-01),
7. 5202562 - High sensitive element analyzing method and apparatus of the same (1993-04-13),
8. 5130537 - Plasma analyzer for trace element analysis (1992-07-14),
9. 5108178 - Atomic absorption spectrophotometer and electromagnetic shut-off valve (1992-04-28),
10. 5035505 - Atomic absorption spectroscopy photometer (1991-07-30),
11. D307398 - Atomic absorption spectrophotometer (1990-04-24),
12. 4890919 - Atomic absorption spectrophotometer (1990-01-02),
13. 4867562 - Atomic absorption spectrophotometer (1989-09-19),
14. 4840484 - Atomic absorption spectrophotometer with furnace at pressure equal or (1989-06-20),
15. 4553840 - Double monochrometer (1985-11-19),

Title: Masamichi Tsukada: Innovator in Mass Spectrometry

Introduction

Masamichi Tsukada is a prominent inventor based in Ibaraki, Japan. He has made significant contributions to the field of mass spectrometry, holding a total of 15 patents. His work focuses on improving the performance and maintainability of mass spectrometers, particularly through innovative designs that enhance signal quality and reduce noise.

Latest Patents

One of Tsukada's latest patents involves a mass spectrometer that utilizes plasma ion source technology. This invention addresses the challenges of photon noise and matrix molecule ions produced by the ion source. By implementing a shielding plate and a 90-degree deflector, the apparatus effectively decreases photon noise, thereby improving the overall maintenance of the device. The design also features a leading electrode and a double cylindrical type static lens, which work together to suppress signal loss. Additionally, the use of an ion trap mass analyzer allows for the elimination of matrix molecule ions, enhancing the detectable limit of atomic ions in samples.

Career Highlights

Masamichi Tsukada is currently employed at Hitachi, Ltd., where he continues to develop advanced technologies in mass spectrometry. His innovative approaches have led to significant advancements in the field, making him a respected figure among his peers.

Collaborations

Tsukada has collaborated with notable colleagues, including Toyoharu Okumoto and Konosuke Oishi. Their combined expertise has contributed to the successful development of cutting-edge mass spectrometry technologies.

Conclusion

Masamichi Tsukada's contributions to mass spectrometry exemplify the impact of innovative thinking in scientific research. His patents reflect a commitment to enhancing the functionality and reliability of analytical instruments.

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