Hirai; Toru

Patent Applications and Registrations

Patent applications and USPTO patent grants for Hirai; Toru.The latest application filed is for "flow rate control device".

Company Profile

2.10.11

Hirai; Toru - Osaka JP
HIRAI; Toru - Osaka-shi JP
Hirai; Toru - Shizuoka JP
Hirai; Toru - Hamamatsu JP
Hirai; Toru - Yokohama JP
Hirai; Toru - Yokohama-shi JP
Hirai, Toru - Hamamatsu-shi JP
Hirai; Toru - Kawagoe
Hirai; Toru - Iwaki JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Flow rate control device Grant 10,641,407 - Hirai , et al.	2020-05-05
Flow Rate Control Device App 20190085988 - HIRAI; Toru ; et al.	2019-03-21
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus Grant 7,925,006 - Hirai , et al. April 12, 2	2011-04-12
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus Grant 7,925,008 - Hirai , et al. April 12, 2	2011-04-12
Current noise spectrum estimation method and apparatus with correlation between previous noise and current noise signal Grant 7,596,495 - Kazama , et al. September 29, 2	2009-09-29
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus Grant 7,403,609 - Hirai , et al. July 22, 2	2008-07-22
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus App 20070258579 - Hirai; Toru ; et al.	2007-11-08
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus App 20070258578 - Hirai; Toru ; et al.	2007-11-08
Tire air pressure monitoring system Grant 7,230,525 - Hirai June 12, 2	2007-06-12
Picked-up-sound recording method and apparatus Grant 7,130,428 - Hirai , et al. October 31, 2	2006-10-31
Tire air pressure monitoring system App 20060012469 - Hirai; Toru	2006-01-19
Noise spectrum estimation method and apparatus App 20050256705 - Kazama, Michiko ; et al.	2005-11-17
Method of discriminating between double-talk state and single-talk state App 20050220292 - Okumura, Hiraku ; et al.	2005-10-06
Impulse response setting method for the 2-channel echo canceling filter, a two-channel echo canceller, and a two-way 2-channel voice transmission device Grant 6,950,513 - Hirai , et al. September 27, 2	2005-09-27
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus App 20040174991 - Hirai, Toru ; et al.	2004-09-09
Impulse response setting method for the 2-channel echo canceling filter, a two-channel echo canceller, and a two-way 2-channel voice transmission device App 20030021389 - Hirai, Toru ; et al.	2003-01-30
Picked-up-sound reproducing method and apparatus App 20020159603 - Hirai, Toru ; et al.	2002-10-31
Unreacted gas detector and unreacted gas sensor App 20020134135 - Komehana, Katsunori ; et al.	2002-09-26
Reactor for generating moisture App 20020136676 - Komehana, Katsunori ; et al.	2002-09-26
Method for preventing senescence and increasing bone mass Grant 5,001,118 - Maeda , et al. March 19, 1	1991-03-19
Method for electrodepositing a protein onto an ion-exchange membrane Grant 4,294,677 - Sakagami , et al. October 13, 1	1981-10-13

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