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Inventor

Tsuyoshi Nishitarumizu

Inventor
Katsuta, JP

Overview

5→
Patents
1989–1994
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F04Bprimary
F04BPositive-displacement machines for liquids40%
H01JElectric discharge tubes or discharge lamps40%
G01NInvestigating or analysing materials by determining their chemical or physical properties20%
PatentTitleYear
5,308,977'Plasma mass spectrometer'19945,164,592'Method and apparatus for mass spectrometric analysis'19925,122,752'Method of and apparatus for analyzing granular materials'19924,913,624'Low pulsation displacement pump'19904,810,168'Low pulsation pump device'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1994Patents assigned to HITACHI LTD (5)· patent assignee history
1989–1994Based in Katsuta, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD51989–1994
Locations
LocationPatentsSpan
Katsuta, JP51989–1994