Hiro Moriyasu

From TekWiki
Jump to navigation Jump to search
Hiro Moriyasu.jpg

Hiro Moriyasu (b. 1935 in Kure, Hiroshima, Japan – d. 17 July 2005 in Portland, OR) was an engineer who joined Tektronix in 1959 for a career spanning more than 25 years.

He pioneered the digital oscilloscope and other advanced computer technologies, and held more than 20 U.S. patents.

In the early 1970s, Hiro became the general manager of a new division of Tektronix focused on scientific graphic computing.

Upon leaving Tektronix, Hiro spent two years at Electro Scientific, Inc., co-founded Zeelan Technology in 1990 (acquired by Mentor in 1996) and founded of Acumar Technology in 1998 (acquired by Lafayette Instruments in 2006).

Moriyasu was born in Kure, Hiroshima, Japan. He came to the United States in 1953 as an electrical engineering student at Oregon State University. He died in Portland, Oregon on 17 July 2005, aged 70.

Links

Products

  • Key designer of 4051 computer
  • Key designer of P7001 digitizer
  • Likely designer of X381 plug-in (history uncertain)
  • ... please add

Products by Hiro Moriyasu

Model Class Description Designers Introduced
X381 Plug-in Experimental timebase plug-in Hiro Moriyasu (not released)
P7001 Oscilloscope Digitizer for the 7704A oscilloscope Hiro Moriyasu Luis Navarro Bruce Hamilton Jack Gilmore Bob Shand 1973
4051 Computer Graphics-capable desktop microcomputer Hiro Moriyasu 1975

Components by Hiro Moriyasu

No results

Patents by Hiro Moriyasu

Page Office Number Title Inventors Company Filing date Grant date
Patent CA 907199A CA 907199A Read only memory employing striplines Hiro Moriyasu Tektronix Inc 1972-08-08
Patent CA 798503A CA 798503A Trigger level control circuit Hiro Moriyasu Tektronix Inc 1968-11-05
Patent CA 793994A CA 793994A Automatic time base rate circuit Hiro Moriyasu Tektronix Inc 1968-09-03
Patent CA 910988A CA 910988A Transmission line circuit having common delay line for two signal paths of opposite direction Hiro Moriyasu Tektronix Inc 1972-09-26
Patent US 3325742A US 3325742A Hybrid amplifier circuit Hiro Moriyasu Tektronix Inc 1963-08-06 1967-06-13
Patent US 3441863A US 3441863A Drift compensated direct coupled amplifier circuit having adjustable d.c. output voltage level Hiro Moriyasu Tektronix Inc 1965-08-02 1965-08-02
Patent US 3439282A US 3439282A Time base generator with automatic rate control Hiro Moriyasu Tektronix Inc 1965-08-20 1965-08-20
Patent US 3473044A US 3473044A Monostable comparator circuit Hiro Moriyasu Tektronix Inc 1965-12-13 1965-12-13
Patent US 3408580A US 3408580A Oscilloscope device exhibiting reduced jitter Hiro Moriyasu Tektronix Inc 1966-03-17 1966-03-17
Patent AU 1028470A AU 1028470A Multistable circuit including elements preset for conduction Hiro Moriyasu Tektronix Inc 1969-01-21 1970-01-14
Patent US 3681617A US 3681617A Multistable circuit including elements preset for conduction Hiro Moriyasu Tektronix Inc 1969-01-21 1969-01-21
Patent US 3639785A US 3639785A Pulse generator Hiro Moriyasu Tektronix Inc 1969-01-21 1969-01-21
Patent AU 438245 AU 438245 Multistable circuit including elements preset for conduction Hiro Moriyasu Tektronix Inc 1969-01-21 1970-01-14
Patent US 3596170A US 3596170A Circuit for regulating peak values of an ac wave Hiro Moriyasu Hideki Iwata Tektronix Inc 1969-09-12 1969-09-12
Patent US 3643234A US 3643234A Read-only memory employing striplines Hiro Moriyasu Tektronix Inc 1970-03-02 1970-03-02
Patent US 3879669A US 3879669A Adjustable trigger level control circuit Hiro Moriyasu Tektronix Inc 1971-07-21 1973-12-10
Patent US 3730993A US 3730993A Transmission line circuit having common delay line for two signal paths of opposite direction Hiro Moriyasu Tektronix Inc, Moriyasu H 1972-01-13 1973-05-01
Patent CA 1032281A CA 1032281A Oscilloscope system for acquiring, processing, and displaying information Luis Navarro Hiro Moriyasu Wim Velsink Jack Gilmore Tektronix 1973-01-08 1974-01-07
Patent CA 1018684A CA 1018684A Oscilloscope sampling system Luis Navarro Wim Velsink Jack Gilmore Hiro Moriyasu Luis Navarro, Wim Velsink, Tektronix, Jack Gilmore, Hiro Moriyasu 1973-01-08 1976-06-04
Patent US 4225940A US 4225940A Oscilloscope system for acquiring, processing, and displaying information Hiro Moriyasu Jack Gilmore Wim Velsink Luis Navarro Tektronix Inc 1978-10-02 1978-10-02
Patent US 5034698A US 5034698A Dual-path wideband and precision data acquisition system Hiro Moriyasu Hiro Moriyasu 1990-01-22 1990-01-22
Patent US 5243343A US 5243343A Signal acquisition system utilizing ultra-wide time range time base Hiro Moriyasu Zeelan Technology, Inc. 1990-12-03 1990-12-03
Patent US 5349539A US 5349539A Behavioral model parameter extractor Hiro Moriyasu Zeelan Technology, Inc. 1991-10-28 1991-10-28
Patent US 5444459A US 5444459A Signal acquisition system utilizing ultra-wide time range time base Hiro Moriyasu Zeelan Technology, Inc. 1993-06-22 1995-08-22
Patent US 5857986A US 5857986A Interactive vibrator for multimedia Hiro Moriyasu Hiro Moriyasu 1996-05-24 1996-05-24
Patent US 5797860A US 5797860A Low profile vibrating floor mat Hiro Moriyasu Hiro Moriyasu 1996-07-26 1996-07-26
Patent US 6027463A US 6027463A Music massager Hiro Moriyasu Hiro Moriyasu 1996-12-27 1996-12-27
Patent US 6516527 US 6516527 Inclinometer Hiro Moriyasu Hiro Moriyasu 2000-11-03 2000-11-03
Patent US 2004143201 US 2004143201 Method of supporting and fastening for effective energy transfer utilizing a vibrating motor for a floor mat application Hiro Moriyasu Hiro Moriyasu 2003-01-17 2003-01-17
Patent US 6853103 US 6853103 Low profile push-pull magnetic vibrating apparatus Hiro Moriyasu Hiro Moriyasu 2003-01-31 2003-01-31