User profiles for TAKAYUKI SHIMIZU

Takayuki Shimizu

Senior Principal Researcher, Toyota Motor North America, R&D InfoTech Labs
Verified email at toyota.com
Cited by 2274

Attenuation of conducted EMI emissions from an inverter-driven motor

H Akagi, T Shimizu - IEEE Transactions on Power Electronics, 2008 - ieeexplore.ieee.org
This paper provides theoretical and experimental discussions on conducted electromagnetic
interference (EMI) emissions from an inverter-driven motor rated at 400 V and 15 kW. It …

Millimeter wave vehicular communications: A survey

V Va, T Shimizu, G Bansal… - Foundations and Trends …, 2016 - nowpublishers.com
Future vehicles will require massive sensing capability. Leveraging only onboard sensors,
though, is challenging in crowded environments where the sensing field-of-view is obstructed. …

Inverse multipath fingerprinting for millimeter wave V2I beam alignment

V Va, J Choi, T Shimizu, G Bansal… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
Efficient beam alignment is a crucial component in millimeter wave systems with analog
beamforming, especially in fast-changing vehicular settings. This paper proposes to use the …

Comparative analysis of DSRC and LTE-V2X PC5 mode 4 with SAE congestion control

T Shimizu, B Cheng, H Lu… - 2020 IEEE Vehicular …, 2020 - ieeexplore.ieee.org
In vehicle-to-everything (V2X) communications, ensuring the scalability is one of the most
important aspects of V2X safety applications. This paper analyzes and compares the …

Securing vehicle-to-everything (V2X) communication platforms

M Hasan, S Mohan, T Shimizu… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Modern vehicular wireless technology enables vehicles to exchange information at any time,
from any place, to any network-forms the vehicle-to-everything (V2X) communication …

Neutrophil-to-lymphocyte ratio has a close association with gangrenous appendicitis in patients undergoing appendectomy

M Ishizuka, T Shimizu, K Kubota - International surgery, 2013 - meridian.allenpress.com
The purpose of this study was to clarify the clinical features most closely associated with
gangrenous appendicitis. From among 314 patients who had undergone open appendectomy …

Beam design for beam switching based millimeter wave vehicle-to-infrastructure communications

V Va, T Shimizu, G Bansal… - 2016 IEEE International …, 2016 - ieeexplore.ieee.org
Beam alignment is a source of overhead in mobile millimeter wave communication systems
due to the need for frequent repointing. Beam switching architectures can reduce the amount …

Online learning for position-aided millimeter wave beam training

V Va, T Shimizu, G Bansal, RW Heath - IEEE Access, 2019 - ieeexplore.ieee.org
Accurate beam alignment is essential for the beam-based millimeter wave communications.
The conventional beam sweeping solutions often have large overhead, which is …

[HTML][HTML] Risk factors for developing human herpesvirus 6 (HHV-6) reactivation after allogeneic hematopoietic stem cell transplantation and its association with central …

…, R Yamazaki, Y Aisa, T Nakazato, T Shimizu… - Biology of Blood and …, 2007 - Elsevier
We prospectively evaluated the incidence of human herpesvirus 6 (HHV-6) DNAemia after
allogeneic hematopoietic stem cell transplantation (HSCT) using quantitative plasma real-…

A lower neutrophil to lymphocyte ratio is closely associated with catarrhal appendicitis versus severe appendicitis

T Shimizu, M Ishizuka, K Kubota - Surgery today, 2016 - Springer
Purpose Catarrhal appendicitis (CA) could be treated effectively with antibiotics in some
patients because of the milder inflammation associated with this form of appendicitis. Although …